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Study sets matching "stats chapter 3 elementary"

33 terms
Bluman Elementary Statistics Chapter 3
bimodal
boxplot
Chebyshev's Theorem
co-efficient of variation
a data set with 2 modes
a graph used to represent a data set when the data set contai…
theorem stating that the proportion of values from a data set…
standard deviation divided by the mean with the result expres…
bimodal
a data set with 2 modes
boxplot
a graph used to represent a data set when the data set contai…
15 terms
Elementary Statistics Chapter 3
Measure of Center
Arithmetic Mean (Mean)
Median
Mode
The value at the center or middle of a data set
The measure of center obtained by adding the values and divid…
The middle value when the original data values are arranged i…
The value that occurs with the greatest frequency
Measure of Center
The value at the center or middle of a data set
Arithmetic Mean (Mean)
The measure of center obtained by adding the values and divid…
21 terms
Chapter 3 Elementary Statistics
Bi variate Data
Correlation
Input Variable
Least Squares Criterion
The values of two different variables that are obtained from…
As the input variable increases there is a definite shift in…
The independent variable
Says that we find constants such that the sums of the least s…
Bi variate Data
The values of two different variables that are obtained from…
Correlation
As the input variable increases there is a definite shift in…
14 terms
Elementary Statistics Chapter 3
measures of average
measures of variation
measures of variation:
measures of position
mean, median, mode and mdirange
measures that determine the spread of the data values
range, variance, standard deviation.
percentiles, deciles and quartiles
measures of average
mean, median, mode and mdirange
measures of variation
measures that determine the spread of the data values
19 terms
Chapter 3 Elementary Statistics
mean
population mean
sample mean
median
computed by adding all the values of the variable in the data…
denoted by a u (1st line is longer)... computed by using all th…
(x with line on top) called "x-bar"... computed using SAMPLE da…
the value that lies in the MIDDLE of the data when arranged i…
mean
computed by adding all the values of the variable in the data…
population mean
denoted by a u (1st line is longer)... computed by using all th…
10 terms
Elementary Statistics - Chapter 3
Mean
Median
Mode
Resistant Statistic
the average of a set of numbers
the number that splits the data set in half
the number that appears most frequently in a data set
...
Mean
the average of a set of numbers
Median
the number that splits the data set in half
21 terms
Elementary Statistics Chapter 3 triola
Measure of center
What are four different ways to calcul…
Mean
Resistant measure of center
a value at the center or middle of a data set
Mean... Median... Mode ... Midrange
(average) the mean of a set of data is the measure of center…
can resist substantial changes caused by extreme values. ... mea…
Measure of center
a value at the center or middle of a data set
What are four different ways to calcul…
Mean... Median... Mode ... Midrange
33 terms
Bluman Elementary Statistics Chapter 3
bimodal
boxplot
Chebyshev's Theorem
co-efficient of variation
a data set with 2 modes
a graph used to represent a data set when the data set contai…
theorem stating that the proportion of values from a data set…
standard deviation divided by the mean with the result expres…
bimodal
a data set with 2 modes
boxplot
a graph used to represent a data set when the data set contai…
17 terms
Elementary Statistics, Triola Chapter 3
measure of center
Mean
sample size
Median
a value at the center or middle of a data set
- generally the most important of all numerical measurements…
number of data values
- is a resistant measure of center... - is the measure of center…
measure of center
a value at the center or middle of a data set
Mean
- generally the most important of all numerical measurements…
19 terms
Elementary Statistics: Chapter 3 -- Statistics for Describing, Exploring, and Comparing Data
measure of center
mean
median
mode
a value at the center of a data set
the measure of center found by adding the data values and div…
the measure of center that is the middle value when the origi…
the value that occurs with the greatest frequency in a data s…
measure of center
a value at the center of a data set
mean
the measure of center found by adding the data values and div…
17 terms
Elementary Statistics- Chapter 3 and 4 Vocab
Parameter
Statistic
Bias
Variability
a number that describes population; a fixed number, but in pr…
a number that describes a sample; the value of a statistic is…
consisted, repeated deviation of the sample statistic from th…
describes how spread out the values of the sample statistic a…
Parameter
a number that describes population; a fixed number, but in pr…
Statistic
a number that describes a sample; the value of a statistic is…
7 terms
Elementary Statistics Chapter 3 Section 3.4
Z-score
Quartiles
Percentile
Quartiles
Represents the number of standard deviations an observation i…
The most common percentiles are quartiles. Quartiles divide d…
a set of data is a value such that k percent of the observati…
The kth percentile of a set of data is a value such that k pe…
Z-score
Represents the number of standard deviations an observation i…
Quartiles
The most common percentiles are quartiles. Quartiles divide d…
9 terms
Elementary Statistics Chapter 3 Section 3.2
Dispersion
Range, R
Deviation about the mean
Population Standard Deviation
The degree to which the data are spread out.
The range, R, of a variable is the difference between the lar…
Standard deviation is based on this. For a population, the de…
The square root of the sum of squared deviations about the po…
Dispersion
The degree to which the data are spread out.
Range, R
The range, R, of a variable is the difference between the lar…
72 terms
Elementary Statistics Midterm Review- Chapter 3
Find the median for the following data…
What is the median of the following nu…
What is the term for a characteristic…
What is the midrange of the following…
5
-3
parameter
13
Find the median for the following data…
5
What is the median of the following nu…
-3
29 terms
Elementary Probability and Statistics Chapter 3 Vocab
anecdotal data
available data
population
parameter
based on an unorganized selection of individual cases, which…
data that were produced in the past for some other purpose bu…
the entire group of individuals in which we are interested bu…
a number describing a characteristic of the POPULATION
anecdotal data
based on an unorganized selection of individual cases, which…
available data
data that were produced in the past for some other purpose bu…
16 terms
Math 240 Elementary Statistics Chapter 3 Vocab
Probability sample
Outcome
Sample Space
Event
A sample chosen by chance; we must know what samples are poss…
The result of a single trial in a probability experiment.
The set of all possible outcomes of a probability experiment.
A subset of the sample space.
Probability sample
A sample chosen by chance; we must know what samples are poss…
Outcome
The result of a single trial in a probability experiment.
32 terms
Bluman Elementary Statistics Chapter 4 section 3
Sample Space
P(E)= Probability of an Event
Rounding Rule for Probability
Rule for Complementary Events
The set of all possible outcomes of a probability experiment.
n(E)/n(s) = Number of outcomes divided by total in the sample…
Four decimal places
1 - P(E)
Sample Space
The set of all possible outcomes of a probability experiment.
P(E)= Probability of an Event
n(E)/n(s) = Number of outcomes divided by total in the sample…
21 terms
Bluman Elementary Statistics Chapter 1 section 3
continuous variables
data
data set
data value or datum
variables that can assume an infinite number of values betwee…
the values (measurements or observations) that variables can…
a collection of data values
a value in the data set
continuous variables
variables that can assume an infinite number of values betwee…
data
the values (measurements or observations) that variables can…
72 terms
Elementary Statistics Midterm Review- Chapter 3
Find the median for the following data…
What is the median of the following nu…
What is the term for a characteristic…
What is the midrange of the following…
5
-3
parameter
13
Find the median for the following data…
5
What is the median of the following nu…
-3
52 terms
Stats Chapt 3 - Elementary Statistics Triola
MEASURE OF CENTER
MEAN (arithmetic mean)
DESCRIPTIVE STATISTICS
NOTATION
value at center or middle of a DATA set
measure of center found by... adding DATA values ... dividing the t…
summarize or describe characteristics of DATA
symbols used for equations
MEASURE OF CENTER
value at center or middle of a DATA set
MEAN (arithmetic mean)
measure of center found by... adding DATA values ... dividing the t…
52 terms
Elementary Statistics Chapter 2
Frequency Distribution
Lower Class Limit
Upper Class Limit
Class Width
Table that shows classes or intervals of data entries with a…
Least number that can belong to a class
Greatest number that can belong to a class
Distance between lower and upper limits of a consecutive clas…
Frequency Distribution
Table that shows classes or intervals of data entries with a…
Lower Class Limit
Least number that can belong to a class
28 terms
Elementary Statistics Final 3
The number of different orders in whic…
5P3
30C5
Discrete random variables are
5·4·3·2·1 = 120.
random variables whose possible values can be listed. Example…
The number of different orders in whic…
5·4·3·2·1 = 120.
5P3
50 terms
Elementary Statistics Chapters 3 and 4
a characteristic or measure obtained b…
a characteristic or measure obtained b…
the midpoint of the data array (MD).
the value that occurs most often in a…
statistic
parameter
median
mode
a characteristic or measure obtained b…
statistic
a characteristic or measure obtained b…
parameter
31 terms
Chapters 1-3: Elementary Statistics
statistic
parameter
continuous (numerical) data
discrete data
numerical measurement describing some characteristic of a sam…
numerical measurement describing some characteristic of a pop…
result from infinitely many possible values that correspond t…
result when the number of possible values is either a finite…
statistic
numerical measurement describing some characteristic of a sam…
parameter
numerical measurement describing some characteristic of a pop…
31 terms
Chapters 1-3: Elementary Statistics
statistic
parameter
continuous (numerical) data
discrete data
numerical measurement describing some characteristic of a sam…
numerical measurement describing some characteristic of a pop…
result from infinitely many possible values that correspond t…
result when the number of possible values is either a finite…
statistic
numerical measurement describing some characteristic of a sam…
parameter
numerical measurement describing some characteristic of a pop…
40 terms
Elementary Statistics Chapter 4
Experiment
Outcomes
Sample space
Tree Diagram
A process that, when performed, results in one and only one o…
These observations are called the outcomes of the experiment.
The collection of all outcomes for an experiment is called a…
Experiment
A process that, when performed, results in one and only one o…
Outcomes
These observations are called the outcomes of the experiment.
11 terms
Chapter 6 Bluman Elementary Statistics
central limit theory
correction for continuity
negatively or left-skewed
positively or right-skewed
theorem that states as the sample size increases, the shape o…
correction used when a continuous distribution is used to app…
distribution where the majority of the data values are to the…
distribution where the majority of the data values are to the…
central limit theory
theorem that states as the sample size increases, the shape o…
correction for continuity
correction used when a continuous distribution is used to app…
52 terms
Elementary Statistics Chapter 2
Frequency Distribution
Lower Class Limit
Upper Class Limit
Class Width
Table that shows classes or intervals of data entries with a…
Least number that can belong to a class
Greatest number that can belong to a class
Distance between lower and upper limits of a consecutive clas…
Frequency Distribution
Table that shows classes or intervals of data entries with a…
Lower Class Limit
Least number that can belong to a class
5 terms
Chapter 1 - Elementary Statistics
Data
Statistics
Population
Census
Collection of observations (such as measurements, genders, su…
The science of planning studies and experiments, obtaining da…
The complete collection of all individuals (score, people, me…
The collection of data from every member of the population.
Data
Collection of observations (such as measurements, genders, su…
Statistics
The science of planning studies and experiments, obtaining da…
8 terms
Elementary Statistics Bluman Chapter 5
binomial distribution
binomial experiment
discrete probability distribution
expected value
outcomes of a binomial experiment and the corresponding proba…
probability experiment in which... 1. each trial has 2 outcomes…
consists of the values of a random variable and the correspon…
theoretical average of a variable that has a probability dist…
binomial distribution
outcomes of a binomial experiment and the corresponding proba…
binomial experiment
probability experiment in which... 1. each trial has 2 outcomes…
22 terms
Bluman Elementary Statistics Chapter 2
categorical frequency distribution
class
class boundaries
class midpoint
a frequency distribution used when the data are categorical (…
quantitative or qualitative category
the upper and lower values of a class for a grouped frequency…
value for a class in a grouped frequency distribution obtaine…
categorical frequency distribution
a frequency distribution used when the data are categorical (…
class
quantitative or qualitative category
15 terms
Bluman Elementary Statistics Chapter 6
Degree of Freedom
What percentage is 1 standard deviatio…
What percentage is 2 standard deviatio…
What percentage is 3 standard deviatio…
sample size - 1 or n - 1
68%
95%
99.7%
Degree of Freedom
sample size - 1 or n - 1
What percentage is 1 standard deviatio…
68%
52 terms
Stats Chapt 3 - Elementary Statistics Triola
MEASURE OF CENTER
MEAN (arithmetic mean)
DESCRIPTIVE STATISTICS
NOTATION
value at center or middle of a DATA set
measure of center found by... adding DATA values ... dividing the t…
summarize or describe characteristics of DATA
symbols used for equations
MEASURE OF CENTER
value at center or middle of a DATA set
MEAN (arithmetic mean)
measure of center found by... adding DATA values ... dividing the t…
37 terms
Bluman Elementary Statistics Chapter 1
cluster sample
confounding variable
continuous variables
control group
subjects are selected by using an intact group that is repres…
a variable that influences the dependent or outcome variable…
variables that can assume an infinite number of values betwee…
the group that does not receive special instructions or does…
cluster sample
subjects are selected by using an intact group that is repres…
confounding variable
a variable that influences the dependent or outcome variable…
56 terms
Elementary Statistics Chapter 1,2,3 Quiz and Notes
Q. Statistics
Q. What are the two major areas of sta…
Descriptive Statistics
Inferential Statistics
The Science of conducting studies to: collect, organize, anal…
1.Descriptive Statistics ... 2. Inferential Statistics
Describes a situation; consist of the collection, organizatio…
Consist of generalizing from samples to population, performin…
Q. Statistics
The Science of conducting studies to: collect, organize, anal…
Q. What are the two major areas of sta…
1.Descriptive Statistics ... 2. Inferential Statistics
24 terms
Elementary Statistics Chapter 1. Bluman
Two branches of statistics
A group of subjects selected from the…
Consists of all subjects being studied
In a research study, participants shou…
Descriptive and Inferential
sample
population
random
Two branches of statistics
Descriptive and Inferential
A group of subjects selected from the…
sample
44 terms
Elementary Statistics chapter 1
Data
statistics
population
sample
consist of information coming from observations, counts, meas…
the science of collecting organizing analyzing and interpreti…
the collection of all outcomes responses measurements or coun…
subset, or part of a populaiton
Data
consist of information coming from observations, counts, meas…
statistics
the science of collecting organizing analyzing and interpreti…
17 terms
Elementary Statistics Chapter 2
Center
Variation
Distribution
Outliers
A representative value that indicates where the middle of the…
A measure of the amount that the data values vary
The nature or shape of the spread of data over the range of v…
Sample values that lie very far away from the vast majority o…
Center
A representative value that indicates where the middle of the…
Variation
A measure of the amount that the data values vary
18 terms
Elementary Statistics Chapter 1
Data
Statistics
Population
Census
Collections of observations, such as measurements, genders, o…
The science of planning studies and experiments, obtaining da…
The complete collection of all measurements or data that are…
Collection of data from every member of a population
Data
Collections of observations, such as measurements, genders, o…
Statistics
The science of planning studies and experiments, obtaining da…
10 terms
Elementary statistics Chapter 1
Individual
Variable
Categorical Variable
Quantitative Variable
an object described by data
characteristic of the individual
places individual into one of several groups or categories
takes numerical value for which arithmetic operations make se…
Individual
an object described by data
Variable
characteristic of the individual
10 terms
Elementary Statistics: Chapter 6
Random Variable
Discrete Random Variable
Continuous Random Variable
Probability Distribution
A numerical measure of the outcome from a probability experim…
Ether a finite or countable number of values. The values of a…
Infinitely many values, the values of a continuous random var…
Provides the possible values of the random variable x and the…
Random Variable
A numerical measure of the outcome from a probability experim…
Discrete Random Variable
Ether a finite or countable number of values. The values of a…
15 terms
Elementary Statistics Chapter 1
Data
Statistics
Population
Census
observations (measurements or survey response) that has been…
collection of methods for planning surveys and experiments, c…
the complete collection of all objects being studied (ex. all…
data drawn from EVERY member of a population
Data
observations (measurements or survey response) that has been…
Statistics
collection of methods for planning surveys and experiments, c…
22 terms
Bluman Elementary Statistics Chapter 4 section 4
Mutually Exclusive Events
Probability of mutually exclusive events
Probability of NOT mutually exclusive…
P(A or B)
If events cannot occur at the same time. They have no outcome…
P(A or B) = P(A) + P(B)
P(A or B) = P(A) + P(B) - P(A and B)
Probability of the events are added together. Making sure not…
Mutually Exclusive Events
If events cannot occur at the same time. They have no outcome…
Probability of mutually exclusive events
P(A or B) = P(A) + P(B)
14 terms
Elementary Statistics: Chapter Four
The probability that an event will occur
Sample space
Theoretical probability
Empirical probability
______________________________________ is the relative freque…
The ____________ _________ is the set of all possible outcome…
Is knowledge i.e. samples on a table. it is often denoted as…
The experimental, observational probability. It is often deno…
The probability that an event will occur
______________________________________ is the relative freque…
Sample space
The ____________ _________ is the set of all possible outcome…
34 terms
Elementary Statistics chapter 1B
Misleading Conclusions
Reported Results
Small Sample
Loaded Questions
Correlation does not imply causation.
Don't rely on the subjects measurements, instead take your own.
the sample size must be big enough, or it will not accurately…
If the survey questions are not worded carefully the results…
Misleading Conclusions
Correlation does not imply causation.
Reported Results
Don't rely on the subjects measurements, instead take your own.
9 terms
Elementary Statistics Chapter 2
categorical frequency distribution
Frequency (-f-)
n-
Bar Graph
The __________________is used for qualitative data—data that…
_______ is the number of times an item occurs
_____ is the total number of data items
• Has horizontal or vertical bars... • Bars are of uniform width…
categorical frequency distribution
The __________________is used for qualitative data—data that…
Frequency (-f-)
_______ is the number of times an item occurs
11 terms
Elementary Statistics Chapter 10 Section 10.1
Hypothesis
Hypothesis Testing
Null Hypothesis
Alternative Hypothesis
is a statement regarding a characteristic of one or more popu…
a procedure, based on sample evidence and probability, used t…
denoted H0 (Red "H-naught"), is a statement to be tested. The…
denoted H1 (read "H-one"), is a statement that we are trying…
Hypothesis
is a statement regarding a characteristic of one or more popu…
Hypothesis Testing
a procedure, based on sample evidence and probability, used t…
25 terms
Chapter 1 Elementary Statistics
Descriptive Statistics
Inferential Statistics
Population
Finite
the collection, presentation and description of sample data.
the technique of interpreting the values resulting from the d…
a collection, or set, of individuals, objects, or events whos…
a population whose membership can be physically listed (stabl…
Descriptive Statistics
the collection, presentation and description of sample data.
Inferential Statistics
the technique of interpreting the values resulting from the d…
46 terms
Elementary Statistics Chapter 1
Data
Statistics
Population
Census
Collections of observations, such as measurements, genders, o…
the science of planning studies and experiments; obtaining da…
the complete collection of all measurements or data that are…
the collection of data from every member of the population
Data
Collections of observations, such as measurements, genders, o…
Statistics
the science of planning studies and experiments; obtaining da…
9 terms
Elementary Statistics 3.2
range
variance
population variance
sample variance
measure of spread of data set, largest value - smallest value…
small spread: closest to mean... large spread: farther from mean
compute the population mean... subtract this from each value... squ…
compute the sample mean... subtract this from each value... square…
range
measure of spread of data set, largest value - smallest value…
variance
small spread: closest to mean... large spread: farther from mean
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