Question 1

1pts

Correlation looks at the ___________ between variables.

Group of answer choices

intercept

interaction

strength

relationship

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Question 2

1pts

Pearson's r can be calculated on ________.

Group of answer choices

interval and ratio data

all data levels

ordinal, interval and ratio data

ratio data

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Question 3

1pts

Which of the following is not a possible value for Pearson's r?

Group of answer choices

1.5

0

-1

0.7

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Question 4

1pts

When calculating Pearson's r, you need to create which 3 columns?

Group of answer choices

beats me

X*X, Y*Y, X*Y

square root of X, square root of Y, cross product

Sum X, Sum Y, Sum XY

Which is the strongest relationship?

Group of answer choices

r=0.6

r=0.3

r=-0.7

r=0