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Study sets matching "statistics chapter 3"

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Study sets matching "statistics chapter 3"

27 terms
Statistics - Chapter 3
measure of center
mean
median
mode
the central position of the data set; "typical" value in a da…
average value; balancing point of a data set
middle value of a data set
most common value of a data set
measure of center
the central position of the data set; "typical" value in a da…
mean
average value; balancing point of a data set
23 terms
AP Statistics Chapter 3 VOCAB
Response Variable
Explanatory Variable
Scatterplot
Positive Association
measures an outcome of a study
may help explain or predict changes in a response variable
shows the relationship between two quantitative variables mea…
data points that generally go upward from left to right, some…
Response Variable
measures an outcome of a study
Explanatory Variable
may help explain or predict changes in a response variable
25 terms
Statistics Chapter 3
Bimodal distribution
First quartile
Interquartile Range
Lower inner fence
A distribution that has two modes
The value in a ranked data set such that about 25% of the mea…
The difference between the third and the first quartiles
A value in a data set that is 1.5(IQR) below the first quartile
Bimodal distribution
A distribution that has two modes
First quartile
The value in a ranked data set such that about 25% of the mea…
51 terms
AP Statistics: Chapter 3
Response variable
Explanatory variable
Scatterplots
When the variables aren't dependent, t…
Measures the outcome of a study, dependent variable, y
Attempts to explain observed outcomes, indepdent variable, x
Show the relationship betweeen two quantitive variables (biva…
Independent, x
Response variable
Measures the outcome of a study, dependent variable, y
Explanatory variable
Attempts to explain observed outcomes, indepdent variable, x
20 terms
Statistics Chapter 3
mode
median
mean
resistance measure
most frequent number value
the middle number
all of the values added together ÷ the # of values
a measure that is not influenced by extremely high or low dat…
mode
most frequent number value
median
the middle number
8 terms
Chapter 3- Statistics
Outliers
Z Scope
Variance (population)
Variance (sample)
#s far from the avg.
how much SD above or below the avg.
Outliers
#s far from the avg.
Z Scope
how much SD above or below the avg.
28 terms
Statistics Chapter 3
Quantitative variables
Categorical variables
Response variable
Explanatory variable
Numerical values
Values expressed in categories
Measures the outcome of a study; dependent variable; y
Explains observed outcomes; independent variable; x
Quantitative variables
Numerical values
Categorical variables
Values expressed in categories
11 terms
Statistics Chapter 3
mean
average
standard deviation
variance
the arithmetic average
add all values up and divide by the number of values there are
a number that measures how far away the typical observation i…
the standard deviation squared
mean
the arithmetic average
average
add all values up and divide by the number of values there are
32 terms
Statistics Chapter 3
Arithmetic Mean
Population Arithmetic Mean
Sample Arithmetic Mean
Mean
Computed by adding all the values of the variable in the data…
Computed using all the individuals in a population (a paramet…
Computed using sample data (a statistic)
The arithmetic mean
Arithmetic Mean
Computed by adding all the values of the variable in the data…
Population Arithmetic Mean
Computed using all the individuals in a population (a paramet…
19 terms
Statistics Chapter 3
Mean (sample)
Mean (Population)
Standard Deviation (sample)
Standard Deviation (population)
Mean (sample)
Mean (Population)
22 terms
Statistics Chapter 3
Sample mean
population mean
sample median
population median
the sum of the observation divided by n
the mean of the entire population
the middle value of the ordered data
the middle value of an entire population
Sample mean
the sum of the observation divided by n
population mean
the mean of the entire population
Statistics chapter 3
Median
Mode
Mean
Range
the value that lies in the middle of the data when arranged i…
the most frequent observation of the of the variable that occ…
average
the difference between the largest data value and the smallest
Median
the value that lies in the middle of the data when arranged i…
Mode
the most frequent observation of the of the variable that occ…
5 terms
Straighterline Business Statistics - Chapter 3
Parameter
population mean
sample mean
statistic
A characteristic of a population.
population mean = sum of all the values in the population / n…
"x bar"... sample mean = sum of all the values in the sample / n…
A characteristic of a sample.
Parameter
A characteristic of a population.
population mean
population mean = sum of all the values in the population / n…
33 terms
Statistics Chapter 3 Vocabulary
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…
18 terms
Statistics Chapter 3 Vocabulary
Statistic
Parameter
Mean
The Sample Mean
A characteristic or measure obtained by using the data values…
A characteristic or measure obtained by using all the data va…
The sum of the values, divided by the total number of values.
Denoted by x̄ (pronounced X-bar) is calculated by using sampl…
Statistic
A characteristic or measure obtained by using the data values…
Parameter
A characteristic or measure obtained by using all the data va…
20 terms
Statistics Chapter 3 Vocab
Mode
Median
Mean
Resistant measure
occurs most frequently
the middle value when aligned smallest to largest
the average
not influenced by extremely high or low measures
Mode
occurs most frequently
Median
the middle value when aligned smallest to largest
27 terms
Chapter 3 Statistics-Mrs. Crandall
Average
Mode
Median
Sample mean, x
One number used to describe the entire sample or population
the value that occurs most frequently
The central value of an ordered distribution. If there is an…
the sum of all values of entries in a sample population divid…
Average
One number used to describe the entire sample or population
Mode
the value that occurs most frequently
18 terms
The Practice of Statistics - Chapter 3
Response Variable
Explanatory Variable
scatterplot
Interpreting scatterplots
measure the outcome of a study.
may help explain or influence changes in a response variable.
shows the relationship between two quantitative variables mea…
1) the direction ... 2) the form ... 3) the strength of the relatio…
Response Variable
measure the outcome of a study.
Explanatory Variable
may help explain or influence changes in a response variable.
33 terms
Bluman Statistics Chapter 3 Vocabulary
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…
11 terms
Statistics Chapter 3
mode
bimodal
multimodal
Arithmetic mean
most frequently occurring value in a dataset
exactly two modes
more than two modes
(add all values in data set)/(sum of number values in data set)
mode
most frequently occurring value in a dataset
bimodal
exactly two modes
34 terms
Statistics Chapter 3 Terms
Symmetric distribution
skewed
unimodal
outliers
same shape reflected around the center
distribution ends farther on one end than the other
distribution has a single major hump or mode, bimodal has two…
values that lie far from the rest of the data
Symmetric distribution
same shape reflected around the center
skewed
distribution ends farther on one end than the other
9 terms
Statistics Chapter 3
___ ___ refers to the value around whi…
___ refers to the degree to which valu…
___ ___ ___ refers to the particular w…
The three key measures of central tend…
Central tendency
Variability
Shape of distribution
Mode, median, mean
___ ___ refers to the value around whi…
Central tendency
___ refers to the degree to which valu…
Variability
18 terms
Statistics: Pearson Chapter 3
Distribution
Histogram
Gap
Stem-and-leaf display
Slices up all the possible values of the variable into equal-…
a type of bar graph that shows the frequency of data within g…
a region of the distribution where there are no values.
shows quantitative data values in a way that sketches the dis…
Distribution
Slices up all the possible values of the variable into equal-…
Histogram
a type of bar graph that shows the frequency of data within g…
15 terms
AP Statistics Chapter 3
Response Variable
Explanatory Variable
Scatterplot
Positive Association
Measures an outcome of a study
Helps explain or influences changes in a response variable
A graphed cluster of points each of which represents the valu…
Data points that generally go upward from left to right, some…
Response Variable
Measures an outcome of a study
Explanatory Variable
Helps explain or influences changes in a response variable
20 terms
Statistics Chapter 3 Vocab
mode
median
mean
resistant measure
occurs most frequently
the middle value when aligned smallest to largest
the average
not influenced by extremely high or low measures
mode
occurs most frequently
median
the middle value when aligned smallest to largest
24 terms
AP Statistics Chapter 3
Scatterplot
Explanatory Variable
Response Variable
DOFS
Displays the relationship between 2 quantitative variables... 1…
When x helps predict y, goes on x-axis
When y is predicted by x, goes on y axis
Direction, Outliers, Form, Strength
Scatterplot
Displays the relationship between 2 quantitative variables... 1…
Explanatory Variable
When x helps predict y, goes on x-axis
24 terms
AP Statistics Chapter 3
Scatterplot
Explanatory Variable
Response Variable
DOFS
Displays the relationship between 2 quantitative variables... 1…
When x helps predict y, goes on x-axis
When y is predicted by x, goes on y axis
Direction, Outliers, Form, Strength
Scatterplot
Displays the relationship between 2 quantitative variables... 1…
Explanatory Variable
When x helps predict y, goes on x-axis
23 terms
Chapter 3 Statistics Probability
Experiment
Sample Point
Sample Space
Event
process of making an observation that leads to a single outco…
the most basic outcome of an experiment
the collection of all its sample points
is a specific collection of sample points.
Experiment
process of making an observation that leads to a single outco…
Sample Point
the most basic outcome of an experiment
17 terms
Statistics Chapter 3
3.1 Measures of Central Tendency: Mean
3.1 Measures of Central Tendency: Median
3.1 Measures of Central Tendency: Mode
3.1 Measures of Central Tendency: Resi…
- The average.... - Used when data are quantitative and the freq…
- The data value "in the middle"... - Used when the data are qua…
- The most frequently occurring value... - Can be applied to bot…
Resistant statistic is a numerical summary (statistic or para…
3.1 Measures of Central Tendency: Mean
- The average.... - Used when data are quantitative and the freq…
3.1 Measures of Central Tendency: Median
- The data value "in the middle"... - Used when the data are qua…
11 terms
AP Statistics Chapter 3
3 Things you should always do first wi…
Relative Frequency Table (distribution…
Distribution of a variable
Area Principle
1. Make a picture- a display to help you THINK... 2. Picture- SH…
Lists the categories in a categorical variable and the percen…
Tells us what values a variable takes and how often
Each data value should be represented by the same amount of a…
3 Things you should always do first wi…
1. Make a picture- a display to help you THINK... 2. Picture- SH…
Relative Frequency Table (distribution…
Lists the categories in a categorical variable and the percen…
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
AP statistics Chapter 3
frequency distribution
Comparative bar chart
pie chart
Segmented bar chart
A table that displays frequencies and sometimes relative and…
two or more bar charts that use the same set of horizontal an…
a graph of a frequency distribution for a categorical data set.
A graph of a frequency distribution for a categorical data se…
frequency distribution
A table that displays frequencies and sometimes relative and…
Comparative bar chart
two or more bar charts that use the same set of horizontal an…
27 terms
Statistics Final (Chapter 3)
Basic display types
Histogram
Key characteristics to observe
Shape
Histogram, Dot Plot, Steam-and-leaf Display
Uses adjacent bars to show the distribution of a quantitative…
shape, center, spread, and outliers
single or multiple modes; symmetry or skewedness; gaps
Basic display types
Histogram, Dot Plot, Steam-and-leaf Display
Histogram
Uses adjacent bars to show the distribution of a quantitative…
11 terms
Chapter 3 Essential of Statistics
Central tendecny
Median
Mode
Open-ended distribution
Is a statistical measure that attempts to determine the singl…
If the scores in a distribution are listed in order from smal…
In a frequency distribution, the m_____ is the score or categ…
A distribution is said to be open- minded when there is no up…
Central tendecny
Is a statistical measure that attempts to determine the singl…
Median
If the scores in a distribution are listed in order from smal…
16 terms
Chapter 3 -Healthcare statistics
Average daily inpatient census
Calculation of inpatients service days
Calculation of transfers
Census day
The mean number of hospital inpatients present in the hospita…
The measurement of the services received by all inpatients in…
A medical care unit that shows transfers on and off the unit…
A unit of measure equivalent to the services received by one…
Average daily inpatient census
The mean number of hospital inpatients present in the hospita…
Calculation of inpatients service days
The measurement of the services received by all inpatients in…
27 terms
Statistics 2023 Vocabulary Chapter 3
shape
measure of center
measure of spread
gap
another word for pattern
a measure of center is an indication of where the center, or…
a measure of spread tells us how the data is distributed; the…
gap refers to a gap in the data set; a gap occurs when severa…
shape
another word for pattern
measure of center
a measure of center is an indication of where the center, or…
24 terms
Statistics Chapter 3
central tendency
mean / average
weighted mean
outliers
a single value used to describe the center point of a data set
most common measure of central tendency... calculated by adding…
allows you to assign more weight to certain values and less w…
values that are much higher or lower than most of your data
central tendency
a single value used to describe the center point of a data set
mean / average
most common measure of central tendency... calculated by adding…
10 terms
Chapter 3: Statistics
Ascending
Descending
Measure of central tendency
Arithmetic mean
Going up, increasing
Going down, decreasing
a measure of the midpoint of an ordered data set
the sum of a set of values divided by the number of values; a…
Ascending
Going up, increasing
Descending
Going down, decreasing
14 terms
Statistics - Chapter 3 Vocab
Arithmetic Mean
Median
Mode
Skewed Right
The sum of all observations divided by the number of observat…
The midpoint of all ranked values
The most frequently observed value in a data set
Mean > Medain; long right tail
Arithmetic Mean
The sum of all observations divided by the number of observat…
Median
The midpoint of all ranked values
Statistics Chapter 3
Mean
Standard Deviation
Variance
Empirical Rule
Arithmetic avergage, typical value, add all together and divi…
Number that measures how far away typical observations are fr…
standard deviation squared
Rough guideline that helps us understand how the standard dev…
Mean
Arithmetic avergage, typical value, add all together and divi…
Standard Deviation
Number that measures how far away typical observations are fr…
32 terms
Statistics Chapter 3
bimodal distribution
box-and-whisker plot
Chebyshev's theorem
Coefficient of variation
a distribution that has two modes
a plot that shows the center, spread, and skewness of a data…
for any number k greater than 1, at least (1 - k^2) of the va…
a measure of relative variability that expresses standard dev…
bimodal distribution
a distribution that has two modes
box-and-whisker plot
a plot that shows the center, spread, and skewness of a data…
20 terms
Statistics Chapter 3
Probability Experiment
Outcome
Sample Space
Event
An action, or trial, through which specific results (counts,…
The result of a single trial in a probability experiment.
The set of all possible outcomes of a probability experiment {}
Consists of 1+ outcomes and is a subset of the sample space.
Probability Experiment
An action, or trial, through which specific results (counts,…
Outcome
The result of a single trial in a probability experiment.
43 terms
Statistics Chapter 3
Statistical tools to make sense of a l…
Statistical measures that define the c…
Mean
Deviation
Centrality: data values cluster around one central value whic…
Arithmetic Mean... Median... Mode
Suppose there are n observations in a data set consisting of…
Given a point A and a data point x, then (x- A) represents ho…
Statistical tools to make sense of a l…
Centrality: data values cluster around one central value whic…
Statistical measures that define the c…
Arithmetic Mean... Median... Mode
30 terms
Chapter 3 Statistics
Mean (arithmetic mean)
Median
Mode
Bimodal
found by adding the data values and dividing the total by the…
the middle value or physical center of a data set (if n is ev…
the most frequently occurring value in a data set
when two values occur with the highest frequency in a data set
Mean (arithmetic mean)
found by adding the data values and dividing the total by the…
Median
the middle value or physical center of a data set (if n is ev…
23 terms
Statistics chapter 3
standard deviation
Z score
empirical rule definition
68% lie within 1 standard deviation of…
how far the distance is from the mean
measures the number of standard deviations above or below the…
rule stating the symmetrical % breakdown of a bell shape.
empirical rule % breakdowns
standard deviation
how far the distance is from the mean
Z score
measures the number of standard deviations above or below the…
12 terms
Statistics - Chapter 3 Vocabulary
Variance
Sample Variance
Standard Deviation
Z-Score
Measure of how far values in a set of data are from the mean
Summation of the differences of all values and the mean squar…
a quantity calculated to indicate the extent of deviation for…
A value minus the mean, divided by the standard deviation.
Variance
Measure of how far values in a set of data are from the mean
Sample Variance
Summation of the differences of all values and the mean squar…
13 terms
Statistics Chapter 3
Measure of center
Arithmetic mean
Median
Mode
A value at the center or middle of a dat 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
Measure of center
A value at the center or middle of a dat set
Arithmetic mean
The measure of center found by adding the data values and div…
11 terms
Statistics - Chapter 3
sample mean
median
mode
deviation
sum of all data values divided by the total # of data values
data value such that 50% of the information lies to the left…
data value occurs frequently
measure of differences between a set of data values and mean
sample mean
sum of all data values divided by the total # of data values
median
data value such that 50% of the information lies to the left…
16 terms
Statistics Chapter 3
Histogram
Stem-and-leaf display
Mode
Uniform
Uses adjacent bars to show the distribution of a quantitative…
Shows quantitative data values in a way that sketches the dis…
A hump or local high point in the shape of the distribution o…
A distribution that doesn't appear to have any mode and in wh…
Histogram
Uses adjacent bars to show the distribution of a quantitative…
Stem-and-leaf display
Shows quantitative data values in a way that sketches the dis…
16 terms
Statistics - Chapter 3
Central Tendency
Population mean ((μ)
Sample mean (M)
Weighted mean
...
...
...
...
Central Tendency
...
Population mean ((μ)
...
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