# Study sets matching "ap statistics moore"

Study sets

Diagrams

Classes

Users

5 number summary

z score

standard deviation

population

The minumum value, lower quartile, median, upper quartile, and…

a measure of how many standard deviations you are away from th…

A statistical measure of how far away each value is, on averag…

(statistics) the entire aggregation of items from which sample…

5 number summary

The minumum value, lower quartile, median, upper quartile, and…

z score

a measure of how many standard deviations you are away from th…

5 number summary

z score

standard deviation

population

The minumum value, lower quartile, median, upper quartile, and…

a measure of how many standard deviations you are away from th…

A statistical measure of how far away each value is, on averag…

(statistics) the entire aggregation of items from which sample…

5 number summary

The minumum value, lower quartile, median, upper quartile, and…

z score

a measure of how many standard deviations you are away from th…

How do you check if there is outliers?

If a graph is skewed, should we calcula…

If a graph is roughly symmetrical, shou…

What is in the five number summary?

calculate IQR; anything above Q3+1.5(IQR) or below Q1-1.5(IQR)…

median; it is resistant to skews and outliers

mean; generally is more accurate if the data has no outliers

Minimum, Q1, Median, Q3, Maximum

How do you check if there is outliers?

calculate IQR; anything above Q3+1.5(IQR) or below Q1-1.5(IQR)…

If a graph is skewed, should we calcula…

median; it is resistant to skews and outliers

Bias

Census

Cluster sample

Convenience sample

The design of a statistical study shows bias if it would consi…

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

The design of a statistical study shows bias if it would consi…

Census

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

5 number summary

z score

standard deviation

population

The minumum value, lower quartile, median, upper quartile, and…

a measure of how many standard deviations you are away from th…

A statistical measure of how far away each value is, on averag…

(statistics) the entire aggregation of items from which sample…

5 number summary

The minumum value, lower quartile, median, upper quartile, and…

z score

a measure of how many standard deviations you are away from th…

Variables

Categorical Variable

Quantitative Variable

Frequency Table

Characteristic of an individual

Places individual into a category

Takes numerical values for which it makes sense to find an ave…

Table of counts

Variables

Characteristic of an individual

Categorical Variable

Places individual into a category

5 number summary

z score

standard deviation

population

The minumum value, lower quartile, median, upper quartile, and…

a measure of how many standard deviations you are away from th…

A statistical measure of how far away each value is, on averag…

(statistics) the entire aggregation of items from which sample…

5 number summary

The minumum value, lower quartile, median, upper quartile, and…

z score

a measure of how many standard deviations you are away from th…

Significance Test

Null Hypothesis

Alternative Hypthesis

One-Sided

A formal procedure for using observed data to decide between t…

Claim we weigh evidence against in a significance test

The claim that we are trying to find evidence for in a signifi…

It states that a parameter is larger than the null hypothesis…

Significance Test

A formal procedure for using observed data to decide between t…

Null Hypothesis

Claim we weigh evidence against in a significance test

5 number summary

z score

standard deviation

Parameter

Min, Q1, Med, Q3, Max... 25% of data between each number... The f…

std dev from mean... -Number of standard deviations a score is…

A statistical measure of how far away each value is, on averag…

From the whole population- usually unknown... We use statistics…

5 number summary

Min, Q1, Med, Q3, Max... 25% of data between each number... The f…

z score

std dev from mean... -Number of standard deviations a score is…

How do you check if there is outliers?

If a graph is skewed, should we calcula…

If a graph is roughly symmetrical, shou…

What is in the five number summary?

calculate IQR; anything above Q3+1.5(IQR) or below Q1-1.5(IQR)…

median; it is resistant to skews and outliers

mean; generally is more accurate if the data has no outliers

Minimum, Q1, Median, Q3, Maximum

How do you check if there is outliers?

calculate IQR; anything above Q3+1.5(IQR) or below Q1-1.5(IQR)…

If a graph is skewed, should we calcula…

median; it is resistant to skews and outliers

Significance Test

Null Hypothesis

Alternative Hypthesis

One-Sided

A formal procedure for using observed data to decide between t…

Claim we weigh evidence against in a significance test

The claim that we are trying to find evidence for in a signifi…

It states that a parameter is larger than the null hypothesis…

Significance Test

A formal procedure for using observed data to decide between t…

Null Hypothesis

Claim we weigh evidence against in a significance test

Percentile

Frequency Graph

Relative Frequency Graph

Cumulative Relative Frequency Graph

The pth percentile of a distribution is the value with p perce…

A graph showing the counts of each class in a distribution.

A graph showing the percent values of each class from the whol…

The cumulative relative frequency of successive class is the r…

Percentile

The pth percentile of a distribution is the value with p perce…

Frequency Graph

A graph showing the counts of each class in a distribution.

Conditions for Bernoulli Trials

Geometric probability model

Mean & Standard Deviation of Geometic m…

Binomial probability model

1. There are two possible outcomes (success and failure).... 2. t…

- Tells us the probability for a random variable that counts t…

Mean = 1/p... SD = sqrt(q)/p

- Tells us the probabilty for a random variable that counts th…

Conditions for Bernoulli Trials

1. There are two possible outcomes (success and failure).... 2. t…

Geometric probability model

- Tells us the probability for a random variable that counts t…

standard error

one-sample z interval for a population…

sampling variability (and NOTHING else!)

use phat = .5 (creates largest MoE)

When a standard deviation of a statistic is estimated from dat…

What should you include in step three for labeling (in proport…

What sources of error are taken into account for the margin of…

What should you do when calculating the Margin of Error for a…

standard error

When a standard deviation of a statistic is estimated from dat…

one-sample z interval for a population…

What should you include in step three for labeling (in proport…

5 number summary

z score

standard deviation

population

The minumum value, lower quartile, median, upper quartile, and…

a measure of how many standard deviations you are away from th…

A statistical measure of how far away each value is, on averag…

(statistics) the entire aggregation of items from which sample…

5 number summary

The minumum value, lower quartile, median, upper quartile, and…

z score

a measure of how many standard deviations you are away from th…

Parameter

Statistic

Convenience Sample

Voluntary Response Sample

A calculation made from population data

A calculation made from sample data

Uses subjects that are readily available (no randomization)

Subjects choose to be part of the sample (no randomization)

Parameter

A calculation made from population data

Statistic

A calculation made from sample data

context

data

data table

variable

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…

holds information about the same characteristic for many cases

context

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

data

systematically recorded information, whether numbers or labels…

5 number summary

z score

standard deviation

population

The minumum value, lower quartile, median, upper quartile, and…

a measure of how many standard deviations you are away from th…

A statistical measure of how far away each value is, on averag…

(statistics) the entire aggregation of items from which sample…

5 number summary

The minumum value, lower quartile, median, upper quartile, and…

z score

a measure of how many standard deviations you are away from th…

observational study

experiment

experimental unit

factor

observe outcomes without imposing treatment

actively impose some treatment in order to observe the response

the single individual to which the different treatments are as…

the explanatory variable (what is being tested)

observational study

observe outcomes without imposing treatment

experiment

actively impose some treatment in order to observe the response

Pie Chart

Outliers

Bar Chart

Segmented Bar Chart

Qualitative data display that shows how a "whole" divides into…

Individual observation(s) that falls outside the overall patte…

Qualitative display showing the frequency or relative frequenc…

Qualitative display where sub-categories are represented by a…

Pie Chart

Qualitative data display that shows how a "whole" divides into…

Outliers

Individual observation(s) that falls outside the overall patte…

Observational Study

Survey

Experiment

Factors

Investigator observes characteristics of a subset an existing…

Interviewer seeks information from a respondent by engaging in…

Investigator observes how a response variable behaves when oth…

Another name for the variables that researchers manipulate to…

Observational Study

Investigator observes characteristics of a subset an existing…

Survey

Interviewer seeks information from a respondent by engaging in…