AP Statistics Exam Review

Flashcards for reviewing the key concepts in AP Statistics for understanding one variable and two variable data.

Categorical Variables are data that represents __.

groups/categories

Quantitative Variables are measured by __.

counts or means

The Five Number Summary includes: Min, Q1, __, Q3, Max.

Med (Median)

The __ describes the data's shape, center, and spread.

distribution

The Empirical Rule states that for normal data, 68% falls within __ of the mean.

1 standard deviation

A __ relationship occurs when as one variable increases, the other decreases.

negative

In a scatterplot, the __ variable is often plotted on the x-axis.

independent/explanatory

Correlation Coefficient (r) measures the __ relationship between two variables.

linear

In Linear Regression, ŷ represents the __ of the dependent variable.

predicted value

The probability of an event is always between and .

0 (impossible); 1 (definite)

Sampling Bias can occur due to __ response.

voluntary

A __ Group is not exposed to any treatments.

control

In hypothesis testing, a Type I Error is rejecting the null hypothesis when it’s actually __.

true

Power is defined as the probability of __ the null hypothesis when it is false.

rejecting

A Continuous Random Variable's probabilities apply to __ rather than a specific value.

a range

The Central Limit Theorem states that if n > 30, the sampling distribution of sample means will be approximately __.

normal