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7A: Response and Explanatory Variables

Last updated over 4 years ago

6 Nsɛmmisa

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Asemmisa {{asɛmmisaAhyɛnsode}}

1.

The response variable is:

Sometimes called the independent variable (IV)

None of the above

Also known as EV

The variable we expect to explain or predict the value of the explanatory variable.

The variable we expect to change in response to the explanatory variable

Asemmisa {{asɛmmisaAhyɛnsode}}

2.

We wish to investigate the relationship between the number seeds planted in a garden and the number of fruit grown. The explanatory variable (EV) is:

The number of fruit grown

The amount of soil in the garden

None of the above

The number of hours spent watering the plants

The number of seeds planted

Asemmisa {{asɛmmisaAhyɛnsode}}

3.

We wish to investigate the relationship between the time spent shopping and the number of items bought. The response variable (RV) is:

The number of items bought

None of the above

The time spent getting to the shops

The number of items at the shop

The time spent shopping

Asemmisa {{asɛmmisaAhyɛnsode}}

4.

Which of the following is true?

We use the response variable to explain changes that might be observed in the explanatory variable.

The explanatory variable is the variable we expect to be explained by the response variable

None of the above

The explanatory variable is used to explain or predict the value of the response variable

The response variable is also known as the predictor variable

Asemmisa {{asɛmmisaAhyɛnsode}}

5.

We wish to investigate whether a person’s age can be predicted from their IQ score. Which is the explanatory variable (EV)?

None of the Above

Age

Not Sure

IQ Score

Both Age and IQ Score

Asemmisa {{asɛmmisaAhyɛnsode}}

6.

Studies have shown that the marks received by a student depend on the amount of hours spent studying. Which is the response variable (RV)?

Hours spent studying

None of the above

Not sure

Marks

Both Marks and Hours spent studying