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Consider the following table summarizing the speed limit of a certain road and the number of...

Consider the following table summarizing the speed limit of a certain road and the number of accidents occurring on that road in January.

Posted Speed Limit

57

48

40

38

21

23

Reported Number of Accidents

28

25

21

17

18

11

1) Find the slope of the regression line predicting the number of accidents from the posted speed limit. Round to 3 decimal places.

2) Find the intercept of the regression line predicting the number of accidents from the posted speed limit. Round to 3 decimal places.

3) Predict the number of reported accidents for a posted speed limit of 31mph. Round to the nearest whole number.

math   Statistics-And-Probability   
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