# Question

Suppose the regression line μy = -10,000 + 1000x models the relationship for the population of working adults in Canada between x = age and the mean of y = annual income (in Canadian dollars). The conditional distribution of y at each value of x is modeled as normal, with σ = 5000. Use this regression model to describe the mean and the variability around the mean for the conditional distribution at age

(a) 20 years and

(b) 50 years.

(a) 20 years and

(b) 50 years.

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