Strength of Correlation

Question 1

Which correlation coefficient represents a moderate negative correlation?

Revolt · Accepted Answer

C: r = –0.64

Question 2

Which describes the correlation shown?

Revolt · Accepted Answer

C: strong positive

Question 3

Whose data had the strongest correlation?

Revolt · Accepted Answer

A: Student A

Question 4

Over five different weeks, Irina tracked the hours she spent exercising and the hours she spent playing video games. What is the strength of the correlation between the hours spent exercising and the hours spent playing video games?

Revolt · Accepted Answer

B: moderate negative correlation

Question 5

What type of relationship has his teacher discovered?

Revolt · Accepted Answer

A: positive correlation, likely causal

Question 6

Which relationships would most likely be causal? Check all that apply.a positive correlation between time spent exercising and the number of calories burneda negative correlation between temperature and coat salesa positive correlation between time spent practicing free throws and free throw percentagea positive correlation between time spent on the phone with friends and the number of friendsa negative correlation between temperature and the number of speeding tickets

Revolt · Accepted Answer

A: a positive correlation between time spent exercising and the number of calories burned; B: a negative correlation between temperature and coat sales; C: a positive correlation between time spent practicing free throws and free throw percentage

Question 7

Claudia records the hours she spent studying and her test scores for 5 tests.

Revolt · Accepted Answer

D: ✔ 0.85

Question 8

strong negative correlationmoderate negative correlation✔ strong positive correlationmoderate positive correlation

Revolt · Accepted Answer

C: ✔ strong positive correlation

Question 9

Claudia records the hours she spent studying and her test scores for 5 tests.

Revolt · Accepted Answer

Michael does not have a good argument because the information he used shows apositive correlation, which does not imply.: weak; Michael does not have a good argument because the information he used shows apositive correlation, which does not imply.: a causation between variables

Question 10

✔ weakmoderatestrongperfect

Revolt · Accepted Answer

A: ✔ weak

Strength of Correlation Answers

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