Scatterplots

Question 1

x and y have a .

Revolt · Accepted Answer

negative correlation

Question 2

Since y generally as x increases,

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decreases

Question 3

The number of calories is correlated with the amount of vitamin C.

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not

Question 4

Here, again, are the student enrollment data you saw in the warm-up. This scatterplot shows correlation.

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a positive

Question 5

Check all statements below that are true regarding the positive correlation.

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The school’s enrollment generally increased.

Question 6

The graph highlights two other points on the trend line. Use them to find another equation for the trend line shown for this scatterplot.

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y = 82x + 998

Question 7

Interpolate: Use the equation to determine what the student enrollment in 2003 likely was. students

Revolt · Accepted Answer

1244

Question 8

Extrapolate: Use the equation to predict student enrollment in 2013. students

Revolt · Accepted Answer

2064

Question 9

y ≈ x −

Revolt · Accepted Answer

0.703

Question 10

y ≈ x −

Revolt · Accepted Answer

22.991

Scatterplots Answers