AnswersCMS 2026-2027 NC Math 1 CREDIT RECOVERYStrength of Correlation

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1
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Which r -value represents the weakest correlation?

A
0 point 5 4
B
negative 0 point 2 7
C
negative 0 point 7 5
D
0 point 1 1
2
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The number of times a player has golfed in one’s lifetime is compared to the number of strokes it takes the player to complete 18 holes. The correlation coefficient relating the two variables is negative 0 point 2 6 Which best describes the strength of the correlation, and what is true about the causation between the variables?

A
It is a weak negative correlation, and it is not likely causal.
B
It is a strong negative correlation, and it is likely causal.
C
It is a strong negative correlation, and it is not likely causal.
D
It is a weak negative correlation, and it is likely causal.
3

Which r -value represents the most moderate correlation?

A
0 point 5 6
B
negative 0 point 9 2
C
0 point 8 3
D
negative 0 point 1 8
4

Which r -value represents the strongest correlation?

A
0 point 4 8
B
0 point 7 9
C
negative 0 point 8 3
D
negative 0 point 6 7
5

The number of grams of zero-calorie sodium in a restaurant meal is compared to the total number of calories in the meal. The correlation coefficient relating the two variables is 0 point 7 4 Which best describes the strength of the correlation, and what is true about the causation between sodium and the number of calories in this meal?

A
It is a strong positive correlation, and it is likely causal.
B
It is a strong positive correlation, and it is not likely causal.
C
It is a weak positive correlation, and it is not likely causal.
D
It is a weak positive correlation, and it is likely causal.
6

Which graph shows data whose r -value is most likely closest to 0 ?

A
Image with description A coordinate plane with plotted points. The x-axis and y-axis are unlabeled. There are eight points plotted on the plane showing a generally increasing trend with some fluctuations.
B
Image with description A scatter plot across the axes. The horizontal x axis and vertical y axis intersect at the origin, 0 comma 0. There are 11 diamond-shaped data points plotted on the plane. One point is located exactly at the origin 0 comma 0. Another point is located to the right of the y axis and just above the x axis in the first quadrant. The remaining 9 points are scattered to the right of the y axis and below the x axis in the fourth quadrant, showing a general downward pattern.
C
Image with description A scatter plot across the axes. The horizontal x axis and vertical y axis intersect at the origin, 0 comma 0. There are 11 diamond-shaped data points plotted on the plane. One point is located exactly at the origin 0 comma 0. Another point is located to the right of the y axis and just above the x axis in the first quadrant. The remaining 9 points are scattered to the right of the y axis and below the x axis in the fourth quadrant, showing a general downward pattern.
D
Image with description A scatter plot. The horizontal x axis and vertical y axis intersect at an unlabeled origin. There are 11 diamond-shaped data points plotted on the plane. One point is located exactly at the origin. Five points are located to the right of the y axis and above the x axis in the first quadrant. The remaining 5 points are located to the right of the y axis and below the x axis in the fourth quadrant. The points are scattered widely above and below the horizontal axis, showing no distinct pattern.
7

Which best describes the strength of a model with an r -value of 0 point 2 9 ?

A
a strong positive correlation
B
a weak positive correlation
C
a weak negative correlation
D
a strong negative correlation
10

Which r – value represents the strongest negative correlation?

A
negative 0 point 2 2
B
0 point 9
C
negative 0 point 7
D
0 point 3 8

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