Chapter 2 TEST

Chapter 2 TEST

Assessment

Flashcard

Mathematics

11th - 12th Grade

Hard

Created by

Wayground Content

FREE Resource

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15 questions

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1.

FLASHCARD QUESTION

Front

What type of association does a graph show if there is no correlation?

Back

No correlation means that there is no predictable relationship between the two variables.

2.

FLASHCARD QUESTION

Front

What does Y-hat represent in regression analysis?

Back

Y-hat is the predicted value of y for a given value of x.

3.

FLASHCARD QUESTION

Front

What is the correlation coefficient of a perfect negative correlation?

Back

-1

4.

FLASHCARD QUESTION

Front

What does a correlation coefficient of -.928 indicate?

Back

It indicates a strong negative correlation between the two variables.

5.

FLASHCARD QUESTION

Front

How do you make a prediction using the regression line?

Back

You plug in a value for x and simplify to find the corresponding y-hat.

6.

FLASHCARD QUESTION

Front

What is a positive correlation?

Back

A positive correlation means that as one variable increases, the other variable also increases.

7.

FLASHCARD QUESTION

Front

What is a negative correlation?

Back

A negative correlation means that as one variable increases, the other variable decreases.

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