Question

How do you do this question?

Answer 1

Step-by-step explanation:

1. Z = Z

(X − μₓ) / σₓ = a + bX

-μₓ/σₓ + 1/σₓ X = a + bX

a = -μₓ/σₓ

b = 1/σₓ

2. Z = -μₓ/σₓ + 1/σₓ X

μz = -μₓ/σₓ + 1/σₓ (μₓ)

μz = 0