AFDA Unit 8 Test Review

AFDA Unit 8 Test Review

Assessment

Flashcard

Mathematics

10th - 12th Grade

Practice Problem

Hard

Created by

Wayground Content

FREE Resource

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15 questions

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1.

FLASHCARD QUESTION

Front

What is a linear regression equation?

Back

A linear regression equation is a mathematical representation of the relationship between two variables, typically in the form y = mx + b, where m is the slope and b is the y-intercept.

2.

FLASHCARD QUESTION

Front

How do you calculate the expected value using a regression equation?

Back

To calculate the expected value, substitute the given value of x into the regression equation and solve for y.

3.

FLASHCARD QUESTION

Front

What does a positive correlation indicate?

Back

A positive correlation indicates that as one variable increases, the other variable also tends to increase.

4.

FLASHCARD QUESTION

Front

What does a negative correlation indicate?

Back

A negative correlation indicates that as one variable increases, the other variable tends to decrease.

5.

FLASHCARD QUESTION

Front

What is the meaning of 'no correlation'?

Back

No correlation means there is no discernible relationship between the two variables; changes in one do not affect the other.

6.

FLASHCARD QUESTION

Front

What does the correlation coefficient (r) represent?

Back

The correlation coefficient (r) quantifies the strength and direction of a linear relationship between two variables, ranging from -1 to 1.

7.

FLASHCARD QUESTION

Front

What does an r value of 0.3 indicate?

Back

An r value of 0.3 indicates a weak positive correlation between the two variables.

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