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A manager wishes to determine the relationship between the number of miles (in hundreds of miles)...

A manager wishes to determine the relationship between the number of miles (in hundreds of miles) the manager's sales representatives travel per month and the amount of sales (in thousands of dollars) per month. For the given data calculate the following: X=miles travelled 5 6 12 10 11 15 6 y=sales 31 32 70 61 64 60 45

a) Correlation coefficient

b) Equation of regression line

c) Find the value of sales when they travelled is 7 miles.

Math   Statistics-And-Probability   
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