# The following data show the number of hours studied for an exam, x, and the grade received on the exam,

## Question:

a. Draw a scatter diagram of the data.

b. Find the equation of the line of best fit and graph it on the scatter diagram. y = 8

c. Find the ordinates that correspond to x = 2, 3, 4, 5, 6, 7, and 8.

d. Find the five values of e that are associated with the points where x = 3 and x = 6

e. Find the variance se2 of all the points about the line of best fit.

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