Correlation and Data Representation

Correlation and Data Representation

Assessment

Flashcard

Mathematics

12th Grade

Hard

Created by

Wayground Content

FREE Resource

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15 questions

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1.

FLASHCARD QUESTION

Front

What does a correlation coefficient of r = -0.9 indicate?

Back

It indicates a strong and negative correlation between the two variables.

2.

FLASHCARD QUESTION

Front

What is the correlation coefficient of the data set: (1,-3) (2,-6) (3,-9) (4,-12)?

Back

The correlation coefficient is -1.

3.

FLASHCARD QUESTION

Front

How do you calculate the residual for a given data point?

Back

Residual = Actual value - Predicted value.

4.

FLASHCARD QUESTION

Front

If a person works 35 hours and makes $902, what is the residual?

Back

The residual is $43.55.

5.

FLASHCARD QUESTION

Front

What is the predicted income for 22 hours worked on an assembly job?

Back

The predicted income is $449.60.

6.

FLASHCARD QUESTION

Front

True or False: The response variable is always the same as the dependent variable.

Back

True.

7.

FLASHCARD QUESTION

Front

What does a correlation coefficient of r = 0 indicate?

Back

It indicates no correlation between the two variables.

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