The following gives the number of accidents that occurred on Florida State Highw

Question

The following gives the number of accidents that occurred on Florida State Highway 101 during the last 4 months:

Month

Jan

Feb

Mar

Apr

Number of Accidents

30

45

60

90

Using the least-squares regression method, the trend equation for forecasting is (round your responses to two decimal

places): =7.50 + 19.50x

Using least-squares regression, the forecast for the number of accidents that will occur in the month of May = ? accidents (enter your response as a whole number).

Month

Jan

Feb

Mar

Apr

Number of Accidents

30

45

60

90

Explanation / Answer

For the month of May, x = 5. Hence,

By putting x = 5 in the given regression equation, we will get:

y = 7.50 + 19.50*5

y = 105

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