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AP Stats Ch.3 Review

AP Stats Ch.3 Review

Assessment

Flashcard

Mathematics

9th - 12th Grade

Practice Problem

Hard

CCSS
HSS.ID.B.5, HSS.ID.C.9, 8.SP.A.2

+2

Standards-aligned

Created by

Wayground Content

FREE Resource

Student preview

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15 questions

Show all answers

1.

FLASHCARD QUESTION

Front

What is correlation in statistics?

Back

Correlation is a statistical measure that describes the strength and direction of a relationship between two variables.

Tags

CCSS.HSS.ID.C.9

2.

FLASHCARD QUESTION

Front

What does a correlation coefficient (r) of -0.71 indicate?

Back

A correlation coefficient of -0.71 indicates a strong negative relationship between the two variables, meaning as one variable increases, the other tends to decrease.

Tags

CCSS.HSS.ID.B.5

3.

FLASHCARD QUESTION

Front

What does a correlation coefficient (r) of 0.86 suggest about two variables?

Back

A correlation coefficient of 0.86 suggests a strong positive relationship, indicating that as one variable increases, the other variable also tends to increase.

Tags

CCSS.HSS.ID.B.5

4.

FLASHCARD QUESTION

Front

What is the difference between an explanatory variable and a response variable?

Back

The explanatory variable is the variable that is manipulated or changed to observe its effect on the response variable, which is the outcome being measured.

Tags

CCSS.HSS.ID.C.9

5.

FLASHCARD QUESTION

Front

What is the least squares regression line (LSRL)?

Back

The least squares regression line (LSRL) is a straight line that best fits the data points in a scatterplot, minimizing the sum of the squares of the vertical distances of the points from the line.

Tags

CCSS.8.SP.A.2

6.

FLASHCARD QUESTION

Front

What does it mean if a scatterplot shows a linear relationship?

Back

A linear relationship in a scatterplot indicates that the data points tend to follow a straight line pattern, suggesting a consistent relationship between the two variables.

Tags

CCSS.HSS.ID.B.5

7.

FLASHCARD QUESTION

Front

What is the coefficient of determination (R²)?

Back

The coefficient of determination (R²) measures the proportion of variance in the response variable that can be explained by the explanatory variable in a regression model.

Tags

CCSS.HSS.ID.B.6B

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