#### Study sets matching "ap statistics"

#### Study sets matching "ap statistics"

Context

Data

Data Table

Case

The _______ ideally tells WHO was measured, WHAT was measured,…

Systematically recorded information, wether numbers or labels,…

An arrangement of data in which each row represents a case and…

A _______ is an individual about whom or which we have data.

Context

The _______ ideally tells WHO was measured, WHAT was measured,…

Data

Systematically recorded information, wether numbers or labels,…

Area Principle

Frequency Table (Relative Frequency Tab…

The possible values of the variable and…

Bar chart (Relative frequency bar chart)

In a statistical display, each data value should be represente…

Lists the categories in a categorical variable and gives the c…

What does the distribution of a variable give?

Show a bar whose area represents the count (or percentage) of…

Area Principle

In a statistical display, each data value should be represente…

Frequency Table (Relative Frequency Tab…

Lists the categories in a categorical variable and gives the c…

2 measures of center

4 measures of spread

How to calculate variance

Can SD be 0?

mean, median

standard deviation, variance, IQR, range

standard deviation squared

Yes

2 measures of center

mean, median

4 measures of spread

standard deviation, variance, IQR, range

Fundamental Counting Principal

Fundamental Counting Principal

permutation

permutation key words

"How many ways?"

certain procedure (P) can be broken into a number (n) of succe…

An r-permutation of a set of n elements is an ORDERED selectio…

officers, place, arranged, line up

Fundamental Counting Principal

"How many ways?"

Fundamental Counting Principal

certain procedure (P) can be broken into a number (n) of succe…

Context

Data

Data Table

Case

tells who was measured, What was measured, how the data were c…

systematically recored information, whether numbers or labels,…

an arrangement of data in which each row represents a case and…

an individual about whom or which we have data

Context

tells who was measured, What was measured, how the data were c…

Data

systematically recored information, whether numbers or labels,…

context

data

data table

case

ideally tells who was measured, what was measured, how the dat…

systematically recorded information, whether numbers or labels…

an arrangement of data in which each row represents a case and…

an individual about whom or which we have data

context

ideally tells who was measured, what was measured, how the dat…

data

systematically recorded information, whether numbers or labels…

Binomial Coefficient

Binomial Distribution

Binomial Mean

Binomial Probability

The number of ways of arranging k successes among n obervation…

The distribution of the count X successes in the binomial sett…

µ = n*p

If X has a binomial distribution with n observations and proba…

Binomial Coefficient

The number of ways of arranging k successes among n obervation…

Binomial Distribution

The distribution of the count X successes in the binomial sett…

stratified random sampling (SRS)

stratified

cluster

systematic

every group of size n has an equal chance of being selected (n…

first divide into groups (strata), then randomly select n from…

first divide into groups (clusters), then randomly select n gr…

randomly select first subject, then select every kth subject u…

stratified random sampling (SRS)

every group of size n has an equal chance of being selected (n…

stratified

first divide into groups (strata), then randomly select n from…

Population

Sample

Census

Convenience Sample

The entire group of individuals about which we want informatio…

The part of the population from which we actually collect info…

All members of the population are surveyed

Choosing individuals who are easiest to reach...almost guarant…

Population

The entire group of individuals about which we want informatio…

Sample

The part of the population from which we actually collect info…

A ________ is a statistic that provides…

The value of the statistic from a sampl…

A _____________ gives an interval of pl…

The difference between the point estima…

Point estimator

Point estimate

C% confidence interval; point estimate +/- margin of error

less

A ________ is a statistic that provides…

Point estimator

The value of the statistic from a sampl…

Point estimate

Significance test

Hypothesis

How are the results of a test expressed?

If we want to conclude that the mean re…

A formal procedure for comparing observed data with a hypothes…

A statement about a population parameter, like the population…

In terms of a probability that measures how well the data and…

That the response Times have not decreased, we make a clean an…

Significance test

A formal procedure for comparing observed data with a hypothes…

Hypothesis

A statement about a population parameter, like the population…

Population

Sample

Sample Survey

Convenience Sample

The entire group of individuals about which we want information

The part of the population from which we actually collect info…

A survey which is carried out using a sampling method, i.e. in…

Choosing individuals who are easiest to reach...almost guarant…

Population

The entire group of individuals about which we want information

Sample

The part of the population from which we actually collect info…

What is the population in a statistical…

What is the sample in a statistical stu…

What is a convenience sample, and why i…

What is a bias?

the entire group of individuals about which we want information

part of the population from which we actually collect informat…

choosing individuals who are easiest to reach results. However…

design of a statistical study that systematically favors certa…

What is the population in a statistical…

the entire group of individuals about which we want information

What is the sample in a statistical stu…

part of the population from which we actually collect informat…

Bias

Census

Cluster sample

Convenience sample

When a statistical study systematically favors certain outcome…

A study that attempts to collect data from every individual in…

To take a cluster sample, first divide the population into sma…

A sample selected by taking the members of the population that…

Bias

When a statistical study systematically favors certain outcome…

Census

A study that attempts to collect data from every individual in…

Population

Census

Sample

Sample Design

The entire group of individuals that we want information about

A complete count of the population ... Why we wont use Census all…

A part of the population that we actually examine in order to…

Refers to the METHOD used to choose the sample from the popula…

Population

The entire group of individuals that we want information about

Census

A complete count of the population ... Why we wont use Census all…

Statistics

True

Population

Census

The science of collecting, analyzing, and drawing conclusions…

T or F: Variability is universal

The entire collection of individuals or objects about which in…

Performed to gather information abut the entire population

Statistics

The science of collecting, analyzing, and drawing conclusions…

True

T or F: Variability is universal

Z-Test

T-Test

1-PropZTest

2-PropZTest

when variance is known, otherwise use t-test... Random, ... Normal…

What test is used when you have one interval data, one set of…

The ______ command will perform a hypothesis test for a popula…

Compare proportions of two populations... Random, ... Normal(At le…

Z-Test

when variance is known, otherwise use t-test... Random, ... Normal…

T-Test

What test is used when you have one interval data, one set of…

Scatterplot

Explanatory Variable

Response Variable

DOFS

Displays the relationship between 2 quantitative variables... 1 v…

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 v…

Explanatory Variable

When x helps predict y, goes on x-axis

Independence assumption

Randomization condition

10% condition

Central limit theorem

The individuals in a sample must be independent from each othe…

-If data is coming from an experiment, subjects must be random…

When sampling a population we do not want to sample more than…

The sampling distribution of any mean becomes more nearly norm…

Independence assumption

The individuals in a sample must be independent from each othe…

Randomization condition

-If data is coming from an experiment, subjects must be random…

Sampling

Sample

Voluntary Response Sample

Population

Asking a few individuals to find out information about many

A part of the population that we actually examine in order to…

People who choose themselves by responding to a general appeal…

The entire group of individuals that we want information about

Sampling

Asking a few individuals to find out information about many

Sample

A part of the population that we actually examine in order to…

statistics

data

variable

quantitative data

the science of collecting, analyzing, and interpreting data

the numbers or information collected in a study or experiment

any characteristic of a person or thing that can be expressed…

numerical data; numerical values for which arithmetic operatio…

statistics

the science of collecting, analyzing, and interpreting data

data

the numbers or information collected in a study or experiment

sample

observational study

experiment

confounded

representative of an entire population; a picture of the popul…

observes individuals and measures variables of interest, but d…

deliberately imposing some treatment on individuals in order t…

mixed up with; condition of explanatory and lurking variables

sample

representative of an entire population; a picture of the popul…

observational study

observes individuals and measures variables of interest, but d…

Statistical Inference

Population

Sample

Parameter

Using a sample statistic to estimate a population parameter

Every individual of interest (not necessarily a person)

Subset of a population

Numerical measure describing a population

Statistical Inference

Using a sample statistic to estimate a population parameter

Population

Every individual of interest (not necessarily a person)