Study sets matching "statistics probability"

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Study sets matching "statistics probability"

29 terms
Probability and Statistics
Probability
Probability of Independent Events
Probability of Dependent Events
Fundamental Counting Principle
Probability
Probability of Independent Events
Probability and Statistics
frequency table
relative frequency table
pictograph
circle graphs
shows how frequently each unique value appears in the set
shows the proportions of each unique value compared to the en…
graph, generally in the hoorizontal orientation, thta uses pi…
also known as pie charts, provide a visual depiction of the r…
frequency table
shows how frequently each unique value appears in the set
relative frequency table
shows the proportions of each unique value compared to the en…
10 terms
Probability and Statistics
Mean
Mode
Median
Range
the average of a group of numbers
The number that occurs most often in a set of data
The middle number in a set of numbers that are listed in order
the greatest number minus the least number
Mean
the average of a group of numbers
Mode
The number that occurs most often in a set of data
15 terms
Statistics and Probability
Box-and-Whisker Plot
Outlier
Quartile
Bar Graph
shows the distribution of data. The middle... half of the data i…
a number in a set of data that is much larger or much smaller…
1) Division of data into 4 equal parts
A graph that uses horizontal or vertical bars to display data
Box-and-Whisker Plot
shows the distribution of data. The middle... half of the data i…
Outlier
a number in a set of data that is much larger or much smaller…
15 terms
Probability & Statistics
Outcome
Probability
Random
Complementary event
Any one of the possible results of an action.
The likelihood that a particular event will occur
Outcomes occur at random if each outcome is equally likely to…
The events of one outcome happening and that *outcome not h…
Outcome
Any one of the possible results of an action.
Probability
The likelihood that a particular event will occur
Probability & Statistics
Probability
Outcome
Event
Independent Event
is the measure of how likely an event is (where 0 indicates i…
is the result of a single trial of an experiment.
is one or more outcomes of an experiment
Two events, A and B, are independent if the fact that A occur…
Probability
is the measure of how likely an event is (where 0 indicates i…
Outcome
is the result of a single trial of an experiment.
Probability and Statistics
Alpha
Alternate Hypothesis
Analysis of variance
Beta
committing a Type I error
Denoted by H(a), is the assertion that is contradictory to H(…
refers broadly to a collection of experimental situations and…
a Type II error
Alpha
committing a Type I error
Alternate Hypothesis
Denoted by H(a), is the assertion that is contradictory to H(…
18 terms
Probability & Statistics
Statistics ?
Variables?
What is Descriptive Statistics ?
What is Inferential Statistics?
Study of how to collect, organize, analyze, and interpret
Characteristics of the person or object being measured or obs…
Consists of the collection organization summarization and pre…
Uses probability (the chance of something occurring) to deter…
Statistics ?
Study of how to collect, organize, analyze, and interpret
Variables?
Characteristics of the person or object being measured or obs…
Probability and Statistics
Theoretical Probability
Experimental Probability
Law of Large Numbers
Fundamental Counting Principle
the expected... probability and can be found with a formula.
determined by carrying out a simulation or an... experiment.
In experimental probability, as the number of trials... increase…
a computational procedure to determine the number of... possible…
Theoretical Probability
the expected... probability and can be found with a formula.
Experimental Probability
determined by carrying out a simulation or an... experiment.
46 terms
Probability and Statistics
Practical Significance
Statistical Significance
Parameter
Statistic
State practical significance/implications of the results
When results achieved are very unlikely to occur by chance
Numerical measurement describing some characteristic of a pop…
Numerical measurement describing a sample
Practical Significance
State practical significance/implications of the results
Statistical Significance
When results achieved are very unlikely to occur by chance
21 terms
Statistics Probability
Random
Probability
sample space "S"
event "X"
individual outcomes are uncertain but there is nonetheless a…
Any outcome oa a random phenomenon is the proportion of times…
random phenomenon is the set of all possible outcomes
an outcome or a set of outcomes of arandom phenonmenon. That…
Random
individual outcomes are uncertain but there is nonetheless a…
Probability
Any outcome oa a random phenomenon is the proportion of times…
37 terms
Statistics and Probability
Frequency distribution
Event
Population
Mean
Given 2, 3, 1, 2, 1, 3, 2, 3, 4, 5, 4, 2, 2, 3: 1 happens 2 t…
is an outcome or a collection of outcomes... Examples:Rolling a…
The whole group from which a sample is taken; an entire group…
The mean is the average of the numbers: a calculated "central…
Frequency distribution
Given 2, 3, 1, 2, 1, 3, 2, 3, 4, 5, 4, 2, 2, 3: 1 happens 2 t…
Event
is an outcome or a collection of outcomes... Examples:Rolling a…
Probability & Statistics
Probability
Counting Principle
Tree Diagram
Measures of Central Tendency
A measure of the likelihood that an event will occur.
If one event can happen M ways and another event can happen N…
A diagram that shows all of the possible arrangements of obje…
A single number that can represent a set of numbers. The mean…
Probability
A measure of the likelihood that an event will occur.
Counting Principle
If one event can happen M ways and another event can happen N…
11 terms
Probability and Statistics
Probability
Event
Compound Events
Outcome
is the chance that an event will occur or happen--likelihood
is a specific outcome or result
are two or more events happening one after the other
is one possible result of a probability event
Probability
is the chance that an event will occur or happen--likelihood
Event
is a specific outcome or result
13 terms
Probability and Statistics
Median
Mode
Arithmetic Mean
Central Tendency
The 'median' is the 'middle' value in a list of odd numbered…
The 'mode' of a set of data is the value in the set that occu…
The Arithmetic Mean is found by taking the sum of the data, a…
The center or middle of a distribution. There are many measur…
Median
The 'median' is the 'middle' value in a list of odd numbered…
Mode
The 'mode' of a set of data is the value in the set that occu…
Probability and Statistics
Probability
Probability of Independent Events
Probability of Dependent Events
Fundamental Counting Principle
Probability
Probability of Independent Events
Probability / Statistics
Referring to skewness of distributions…
Skewed right plus an outlier on the ri…
Standard Deviation
IQR or Inter Quartile Range
...where the tail is.
Right
a quantity calculated to indicate the extent of deviation for…
Extending from Q1 to median to Q3.
Referring to skewness of distributions…
...where the tail is.
Skewed right plus an outlier on the ri…
Right
Statistics & Probability
bar graph
line graph
dot plot
frequency
How often a piece of data occurs.
bar graph
line graph
Probability and Statistics
Fundamental Counting Principle
Counting Rule
Permutation
Permutation Formula
Identify the # of outcomes of a given experiment and encompas…
If one experiment can be performed in M ways, and a second ex…
An arrangement of specific objects in which order is of parti…
nPr=n!/(n-r)! ... n is the number of objects in a given set.... r i…
Fundamental Counting Principle
Identify the # of outcomes of a given experiment and encompas…
Counting Rule
If one experiment can be performed in M ways, and a second ex…
8 terms
Probability and Statistics
Multiplication Rule
Addition Rule
Conditional Probability
Normal Distribution
P(A n B) = P(A) x P(B) Independent Events
P (A u B) = P(A) + P(B) - P(A n B)
68 - 95 - 99.7
Multiplication Rule
P(A n B) = P(A) x P(B) Independent Events
Addition Rule
P (A u B) = P(A) + P(B) - P(A n B)
10 terms
Probability and Statistics
Mean
Mode
Median
Range
the average of a group of numbers
The number that occurs most often in a set of data
The middle number in a set of numbers that are listed in order
the greatest number minus the least number
Mean
the average of a group of numbers
Mode
The number that occurs most often in a set of data
38 terms
Probability/ Statistics
probability
probability experiment
outcome
sample space
the likelihood that an event will occur
an action, or trial, through which specific results (counts,…
the result of a single trail in a probability experiment
the set of all possible outcomes of a probability experiment
probability
the likelihood that an event will occur
probability experiment
an action, or trial, through which specific results (counts,…
25 terms
Exam 1: Probability/Statistics
Bias
Accurate Data
Qualitative Variable
Random Samples on Calculator
If the design of a statistical study does NOT represent the w…
Data close to the target.
Any variable that measures categories. Categorical variables…
Click Math-->PRB-->5:RandInt(smallest #, biggest #, # to sele…
Bias
If the design of a statistical study does NOT represent the w…
Accurate Data
Data close to the target.
Probability and Statistics
Mean
Mode
Median
Range
the average of a group of numbers
The number that occurs most often in a set of data
The middle number in a set of numbers that are listed in order
the greatest number minus the least number
Mean
the average of a group of numbers
Mode
The number that occurs most often in a set of data
6 terms
Probability and Statistics
Mean
Median
Mode
Probability of A and B
Average
Middle number
occurs most
independent events: P(A) x P(B)
Mean
Average
Median
Middle number
Statistics and Probability
mean (average)
first quartile
interquartile range
mean absolute deviation
sum of numbers in a set of data divided by the number of piec…
the median of the data values less than the median of the tot…
distance between the first and third quartiles of a data set
mean (average)
sum of numbers in a set of data divided by the number of piec…
first quartile
the median of the data values less than the median of the tot…
37 terms
Statistics and Probability
Frequency distribution
Event
Population
Mean
Given 2, 3, 1, 2, 1, 3, 2, 3, 4, 5, 4, 2, 2, 3: 1 happens 2 t…
Rolling a die, flipping a coin, drawing a marble from a bag,…
The whole group from which a sample is taken; an entire group…
The mean is the average of the numbers: a calculated "central…
Frequency distribution
Given 2, 3, 1, 2, 1, 3, 2, 3, 4, 5, 4, 2, 2, 3: 1 happens 2 t…
Event
Rolling a die, flipping a coin, drawing a marble from a bag,…
13 terms
Statistics and Probability
Biased Sample
Interquartile Range (IQR)
Lower Quartile
Mean
a sample in which some members of the population have a great…
the difference between the first and third quartiles in a dat…
the median of the lower half of a set of data ordered from le…
the sum of the terms in a data set divided by the number of t…
Biased Sample
a sample in which some members of the population have a great…
Interquartile Range (IQR)
the difference between the first and third quartiles in a dat…
10 terms
Probability and Statistics
Mean
Mode
Median
Range
the average of a group of numbers
The number that occurs most often in a set of data
The middle number in a set of numbers that are listed in order
the greatest number minus the least number
Mean
the average of a group of numbers
Mode
The number that occurs most often in a set of data
29 terms
Probability and Statistics
Probability
Probability of Independent Events
Probability of Dependent Events
Fundamental Counting Principle
Probability
Probability of Independent Events
Statistics and Probability
population
random sample
statistics
survey
the set that is used for sampling - where we get the informat…
there is an equal chance of each thing within the population…
a branch of mathematics dealing with the collection, analysis…
to gather information by individual samples so as to learn ab…
population
the set that is used for sampling - where we get the informat…
random sample
there is an equal chance of each thing within the population…
16 terms
Statistics and Probability
box and whisker plot
data distrubution
deviation
graph
a diagram that summarizes data using the median, the upper an…
the arrangement of values that show the spread of a data set
the average distance of each data value from the mean
a diagram representing a system of connections or interrelati…
box and whisker plot
a diagram that summarizes data using the median, the upper an…
data distrubution
the arrangement of values that show the spread of a data set
Probability and Statistics.
Statistics
Data
Descriptive statistics
Inferential statistics
The science of conducting studies to collect, organize, summa…
Values, measurements, observations.
The collection, organization, summarization of data.
Generalizes from samples to populations. Determines relations…
Statistics
The science of conducting studies to collect, organize, summa…
Data
Values, measurements, observations.
19 terms
Statistics and Probability
Mean
Median
Mode
Mean is most useful when
The sum of the data divided by the number of items in the dat…
Middle number of the data ordered from least to greatest, or…
Number or numbers that occur most often.
the data has NO extreme values (outliers).
Mean
The sum of the data divided by the number of items in the dat…
Median
Middle number of the data ordered from least to greatest, or…
23 terms
Statistics and Probability
statistical question
dot plot
range
measure of variation
A question that requires collecting and analyzing data values…
Also known as a line plot. A diagram showing frequency data o…
the difference between the greatest number and the least numb…
A measure, such as the range, IQR, or MAD, that describes how…
statistical question
A question that requires collecting and analyzing data values…
dot plot
Also known as a line plot. A diagram showing frequency data o…
30 terms
Statistics and Probability
Outcome
Simple event
Probability
Random
Any one of the possible results of an action.
One outcome or a collection of outcomes.
The change that some event will happen. It is a ratio of the…
Outcomes occur at random if each outcome occurs by chance.
Outcome
Any one of the possible results of an action.
Simple event
One outcome or a collection of outcomes.
Statistics and Probability
Survey
Data
Population
Census
A method of collecting quantitative data.
Facts or information in numerical form for analysis or calcul…
The total group from which information is gathered.
Systematically acquiring and recording information about a gi…
Survey
A method of collecting quantitative data.
Data
Facts or information in numerical form for analysis or calcul…
Statistics and Probability
biased sample
box plot
complement
compound event
a sample that is not representative of the population.
a diagram that divides a set of data into four parts using th…
one of two parts of a probability making a whole.
two or more simple events.
biased sample
a sample that is not representative of the population.
box plot
a diagram that divides a set of data into four parts using th…
36 terms
Probability and Statistics
Data
Statistics
Population
Sample
Consists of information coming from observations, counts, mea…
The science of collecting, organizing, analyzing, and interpr…
The collection of all outcomes, responses, measurements, or c…
Subset or part of a population
Data
Consists of information coming from observations, counts, mea…
Statistics
The science of collecting, organizing, analyzing, and interpr…
statistics and probability
statistics
measures of center
measures of variability
range
study of collecting, organizing, and interpreting info
mean, median, and mode
used to describe distribution of data
The difference between the highest and lowest data
statistics
study of collecting, organizing, and interpreting info
measures of center
mean, median, and mode
1,320 terms
Probability & Statistics
Bar graph
Binary variable
Categorical variable
Data
Displays the distribution of a categorical variable
Categorical variable with 2 choices such as gender- male or f…
Records a group designation such as gender
Numbers or categories recorded for the observational units in…
Bar graph
Displays the distribution of a categorical variable
Binary variable
Categorical variable with 2 choices such as gender- male or f…
107 terms
Probability and Statistics
Population
Sample
Steps in the statistics process
Data
The entire group that is the target of interest, not just peo…
A subgroup of the population. Eg, "the 1 bedroom apartments w…
1. PRODUCE DATA (by studying a sample of the population)... 2. E…
pieces of info about individuals organized into variables
Population
The entire group that is the target of interest, not just peo…
Sample
A subgroup of the population. Eg, "the 1 bedroom apartments w…
30 terms
Probability and Statistics Final Equations :(
"Standardize" or "Z-Score" Population
"Standardize" or "Z-Score" Sample
"Predict (a) z-score given (b) z-score"
Linear Regression "Predict squared err…
Z-score: z= x-μ/σ
Z-score: z=x-x bar/ sample standard deviation
Z of a=ϱ(a,b) Z of b
E([error]2|SLR)=σW2 (1−ϱ^2)
"Standardize" or "Z-Score" Population
Z-score: z= x-μ/σ
"Standardize" or "Z-Score" Sample
Z-score: z=x-x bar/ sample standard deviation
26 terms
Statistics Probability
randomness
Apophenia
Gambler´s fallacy
Law of large numbers
Random is not just a property of that phenomenom, but very mu…
We see all sorts of patterns in what is really ramdom data. W…
the false idea that a ramdom phenomenom can be predicted from…
randomness changes from something which is variable and unpre…
randomness
Random is not just a property of that phenomenom, but very mu…
Apophenia
We see all sorts of patterns in what is really ramdom data. W…
28 terms
Chapter One Probability and Statistics
Data
Statistics
Population
Sample
Information coming from observations, counts, measurements, o…
The science of collecting, organizing, analyzing, and interpr…
Collection of all outcomes, responses, measurements, or count…
Subset of a population.
Data
Information coming from observations, counts, measurements, o…
Statistics
The science of collecting, organizing, analyzing, and interpr…
43 terms
Probability & Statistics - Statistics
Discrete Distribution
Continuous Distribution
Discrete Notation
Continuous Notation
Describes a variable that can only take on discrete values, t…
Describes a variable that can take on any real number value o…
Discrete Distribution
Describes a variable that can only take on discrete values, t…
Continuous Distribution
Describes a variable that can take on any real number value o…
Statistics & Probability
Bivariate Data
Scatter Plot
Line of Best Fit
Cluster
Data for two variables (usually two types of related data).
A graph of plotted points that show the relationship between…
A line on a graph showing the general direction that a group…
When data seems to be "gathered" around a particular line.
Bivariate Data
Data for two variables (usually two types of related data).
Scatter Plot
A graph of plotted points that show the relationship between…
15 terms
Probability & Statistics
outcome
sample space
event
uniform probability model
result of an experiment
the set of all of the possible outcomes of an experiment
an outcome or set of outcomes in a sample space
the probabilities for each outcome are equal
outcome
result of an experiment
sample space
the set of all of the possible outcomes of an experiment
Probability/Statistics
Experiment
Outcomes
Event
Favorable Outcomes
An investigation or procedure that has varying results.
The possible results of an experiment.
A collection of one or more outcomes.
The outcomes of a specific event.
Experiment
An investigation or procedure that has varying results.
Outcomes
The possible results of an experiment.
Probability and Statistics
What are individuals?
What are variables?
What are the levels of measurement?
What are the levels of measurement wit…
people, animals, or things we are studying ... ex. a cat
the characteristics or attributes of the individual ... ex. fur…
quantitative: values of the variable are numbers where it mak…
ordinal: has an inherent order to the categories... nominal: no…
What are individuals?
people, animals, or things we are studying ... ex. a cat
What are variables?
the characteristics or attributes of the individual ... ex. fur…
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