Business Stats - Module 3

HW_03

1. In a study designed to gauge married women’s participation in the workplace today, the data provided in the file HW_03 were obtained from a sample of 500 randomly selected married women. Consider a woman selected at random from this sample in answering following questions.

a. What is the probability that this woman has a job outside the home?

b. What’s the probability that this woman has at least one child?

c. What is the probability that this woman has a full-time job and no more than one child?

d. What is the probability that this woman has a part-time job or at least one child, but not both? (bonus question – 3pts)

2. Consider a random variable with the following probability distribution: P(X=0) = 0.1, P(X=1) = 0.2, P(X=2) = 0.4, and P(X=3) = 0.3

a. Find P(X<=1)

b. Find P(1<X<=3)