4.6. Let be a standard normal random variable.

(a) For an arbitrary constant

a, show that E[(e - a)+] = 4

(a) - a[1 - 4)(a)]

(b) Let X be normally distributed with mean μ and variance cr2. Show that

Transcribed Image Text:

E[(x - b) - [6 ()- ( - ) [ - * )]} =