#### Study sets matching "ap statistics set"

#### Study sets matching "ap statistics set"

Observational Study

Experiment

Convenience Sampling

Bias

Like experiments, oberservstional studies attempt to understa…

A controlled study in which the researcher attempts to unders…

Convenient to who is taking or giving the exam

The sampling method is biased if it systematically favors cer…

Observational Study

Like experiments, oberservstional studies attempt to understa…

Experiment

A controlled study in which the researcher attempts to unders…

5 number summary

z score

standard deviation

population

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

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

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

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

5 number summary

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

z score

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

How do you check if there is outliers?

If a graph is skewed, should we calcul…

If a graph is roughly symmetrical, sho…

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 calcul…

median; it is resistant to skews and outliers

Symmetric

Parameter

Statistic

Median

data on which both sides are fairly the same shape and size.…

value of a population (typically unknown)

a calculated value about a population from a sample(s).

the middle point of the data (50th percentile) when the data…

Symmetric

data on which both sides are fairly the same shape and size.…

Parameter

value of a population (typically unknown)

5 number summary

z score

standard deviation

population

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

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

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

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

5 number summary

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

z score

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

Statistical Significance

Non-Response Bias

P-Value

Empirical Rule

An observed effect too large to attribute plausibly to chance.

Bias introduced to a sample when a large fraction of those sa…

found by substituting the x-value in the regression equation;…

A statistical rule stating that for a normal distribution, al…

Statistical Significance

An observed effect too large to attribute plausibly to chance.

Non-Response Bias

Bias introduced to a sample when a large fraction of those sa…

5 number summary

z score

standard deviation

population

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

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

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

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

5 number summary

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

z score

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

context

data

data table

case

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

systematically recorded information, whether numbers or label…

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

an individual about whom or which we have data

context

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

data

systematically recorded information, whether numbers or label…

sampling

random

factors

units

studying a part in order to gain information about the whole

table of _____ digits can be used to select samples

another name for explanatory variables in an experiment

individuals on which an experiment is done

sampling

studying a part in order to gain information about the whole

random

table of _____ digits can be used to select samples

categorical data

continuous data

data

data collection

Data are categorical if they are in the form of names or labe…

Measured data that can be whole numbers, fractions, or decima…

The plural form of the word datum. A collection of pieces of…

Gathering information for selected population members through…

categorical data

Data are categorical if they are in the form of names or labe…

continuous data

Measured data that can be whole numbers, fractions, or decima…

Statistics

Data

Variable

Quantitative Data

the science of collecting, analyzing, and interpreting data

the numbers of 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 operat…

Statistics

the science of collecting, analyzing, and interpreting data

Data

the numbers of information collected in a study or experiment

5 number summary

z score

standard deviation

population

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

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

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

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

5 number summary

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

z score

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

Conditions for Bernoulli Trials

Geometric probability model

Mean & Standard Deviation of Geometic…

Binomial probability model

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

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

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

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

Conditions for Bernoulli Trials

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

Geometric probability model

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

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

5 number summary

z score

standard deviation

population

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

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

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

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

5 number summary

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

z score

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

Population

Sample

Sampling

Census

The entire group of individuals we want data or information a…

The subset of population we collect data from.

Studying a part to gain info about the whole (studying the sa…

Contacts every individual of the population.

Population

The entire group of individuals we want data or information a…

Sample

The subset of population we collect data from.

Mean

Median

Shifting (adding and subtracting)

Scaling (multiplying or dividing data)

The sum of the data set divided by the number of data items

The middle number when the data is in order from least to gre…

Does not affect s.d., IQR or range (measures of spread) affec…

Affects s.d., IQR, range, mean, and 5 number summary

Mean

The sum of the data set divided by the number of data items

Median

The middle number when the data is in order from least to gre…

Variable

Quantitative Variable

Categorical Variable

Histogram

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

Data-numerical values for which arithmetic operations make se…

Variables that name categories.

Uses adjacent bars to show the distribution of quantitative d…

Variable

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

Quantitative Variable

Data-numerical values for which arithmetic operations make se…

Population

Sample

Observational Study

Experiment

The entire collection of individuals or objects that you want…

Part of the population selected for the study.

Investigators observe subjects and measure variables of inter…

Investigators apply the treatments to experimental units (peo…

Population

The entire collection of individuals or objects that you want…

Sample

Part of the population selected for the study.

Bias

Census

Cluster sample

Convenience sample

The design of a statistical study shows bias if it systematic…

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

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

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

Bias

The design of a statistical study shows bias if it systematic…

Census

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

Random

Independent

Sample Space

With replacement the denominator is...

Individual outcomes are uncertain, however there is a regular…

The outcome of one trial does not influence/effect the outcom…

The set of all possible outcomes. Can be presented as a list…

Constant

Random

Individual outcomes are uncertain, however there is a regular…

Independent

The outcome of one trial does not influence/effect the outcom…

One proportion z-test conditions

One proportion givens

One proportion null hypothesis

One proportion alternative hypothesis

1. One SRS is given/assumed... 2. np̂ > 10... 3. nq^ > 10... 4. Popula…

p, p̂, x, n, SRS

p = ____

p (>/</≠) ____

One proportion z-test conditions

1. One SRS is given/assumed... 2. np̂ > 10... 3. nq^ > 10... 4. Popula…

One proportion givens

p, p̂, x, n, SRS

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 inf…

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

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

Population

The entire group of individuals about which we want information

Sample

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