Quiz about M4U8D1 Correlation and Scatterplots

Question 1

What type of correlation does the following scatterplot show?

Accepted Answer

Positive

Answer

Negative

Answer

None

Question 2

What type of correlation does the following scatterplot show?

Accepted Answer

None

Answer

Positive

Answer

Negative

Question 3

What type of correlation does the following scatterplot show?

Accepted Answer

Negative

Answer

Positive

Answer

None

Question 4

What type of correlation does the following scatterplot show?

Accepted Answer

Negative

Answer

Positive

Answer

None

Question 5

What type of correlation does the following scatterplot show?

Accepted Answer

None

Answer

Positive

Answer

Negative

Question 6

Predict what the next point would be on the scatterplot.

Accepted Answer

(30,100)

Answer

(20,20)

Answer

(10,0)

Question 7

What is the independent variable?

Accepted Answer

Precipitation

Answer

Cucumber Yield

Answer

kg

Question 8

Predict what the next point would be on the scatterplot.

Accepted Answer

(12.5,12.5)

Answer

(10,10)

Answer

(4.5,7)

Question 9

Which is the correct relationship for the following graph?

Accepted Answer

The systolic blood pressure depends on the age.

Answer

The age depends on the systolic blood pressure.

Answer

The blood pressure and age don't coorelate.

Question 10

What is the dependent variable?

Accepted Answer

Ice Cream Sales

Answer

Sunglasses Sold

Answer

Independent

Question 11

Describe the correlation coefficient if

r = 0.90

Accepted Answer

Positive, strong

Answer

Positive, weak

Answer

Negative, weak

Answer

Negative, strong

Question 12

Describe the correlation, if the correlation coefficient is r = -0.26

Accepted Answer

Negative, weak

Answer

Positive, weak

Answer

Positive, strong

Answer

Negative, strong

Question 13

Describe the correlation:

r = -0.98

Accepted Answer

Strong negative

Answer

Strong positive

Answer

Weak positive

Answer

Weak negative

Question 14

Estimate the correlation coefficient.

Accepted Answer

r is close to zero

Answer

r is close to -1

Answer

r is close to 1

Answer

r is close to -1.5

Answer

r is close to 1.5

Question 15

Estimate the correlation coefficient.

Accepted Answer

r is close to 1

Answer

r is close to -1

Answer

r is close to 0

Answer

r is close to -0.5

Answer

r is close to 0.5

M4U8D1 Correlation and Scatterplots

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