Question

Question 1

Types of bonds are divided into three categories: good risk, medium risk, and poor risk. Assume that of a total of 14,563 bonds, 6,309 are good risk, 1,496 are medium risk, and the rest are poor risk. One bond is chosen at random. What is the probability that the bond is not a poor risk? Write only a number as your answer. Round to two decimal places (for example: 0.43). Do not write as a percentage.

Question 2

A group of freshmen and sophomore students was selected and each was asked whether they were a member of a student club. The following table was constructed:

	Student Club	No Student Club
Freshman	11	8
Sophomore	5	13

Find the probability that a randomly selected student form the group is a freshman or is a member of a student club.

Write only a number a your answer. Round to two decimal places (for example: 0.73). Do not write as a percentage.

Question 3

At a local university, when scheduling classes, the probability that there are no evening classes available on a certain day is 0.50 . What is the probability that there is at least one evening class available on a that day?

Write only a number a your answer. Round to two decimal places (for example: 0.73). Do not write as a percentage.

Answer 1