In-Class Assignment # 1 02.07.12
Answer the following questions on a separate sheet of paper.
Title the piece of paper “ORMS 3310.004 In-Class Assignment # 1 02.07.12”.
Show ALL of your work.
1. Suppose that from a population of 65 bank accounts, we want to take a random sample of five accounts
to learn about the population. How many different random samples of five accounts are possible?
2. In a survey of MBA students, the following data were obtained on “students’ first reason for application
to the school in which they matriculated.” The probability that a student chose their school based on
school quality is 42.5%. The probability that a student chose their school based on school cost is 51.1%.
The probability that a student goes to school full-time is 46.1%. The probability that a student goes to
school full-time and choose their school based on school quality is 21.8%. The probability that a student
goes to school part-time and choose their school based on school quality is 20.7%. If a student goes
full-time, what is the probability that school quality is the first reason for choosing a school?
3. According to the U.S. Bureau of Labor Statistics, 80% of the women 25 to 49 years of age participate in
the labor force. Suppose that 60% of the women in that age group are married. Suppose also that 51%
of all women 25 to 49 years of age are married and participating in the labor force. What is the
probability that a married woman is participating in the labor force?