Question

he number of homes sold by a realtor during a month has the following probability distribution: Number Sold Probability 0 0.20 1 0.40 2 0.40 What is the expected number of homes sold by the realtor during a month

Answer 1

Answer: 1.2

Explanation:

Given the probability distribution :

Number Sold(x) ____0 ______ 1 _______ 2

Probability p(x) ___0.20 ______0.40 ___ 0.40

The expected number of homes sold :

Expected value (E(x)) = Σ (x * p(x))

= (0 * 0.2) + (1 * 0.4) + (2 * 0.4)

= 0 + 0.4 + 0.8

= 1.2