Question

Suppose that a regression line for some data transformed with logarithms predicts that when x equals 7. logi) will equal 1.755. What does the regression line predict y will equal when xequals 7? Round your answer to the nearest whole number A. 57 O OB. 12 Oc. 2 O D. 30​

Answer 1

A: 57

Explanation:

We are told that;

When x = 7, log y = 1.755

Since we want to find the value of y when x = 7, and the log function is in base 10, we will just use anti log to solve for y in the equation.

Thus;

Log₁₀y = 1.755

y = 10^(1.755)

y = 56.89

Approximating to a whole number gives;

y = 57