Question

Question 5

In a survey on study habits, students at a local college were asked whether they listened to music while studying. The following table was constructed.

	Listens to Music	Does Not Listen to Music
Male	49	16
Female	5	31

Find the probability that a randomly selected student listens to music while studying given that the student is female.

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

Question 7

A number of people were asked how many days they would wait to seek medical treatment if they were suffering pain that interfered with their ability to work. The results are presented in the following table.

Number of Days	Frequency
0	27
1	370
2	240
3	134
4	19
5	10

Consider this collection of people to be a population. Let X be the number of days for a person sampled at random from this population. Find the probability that a person would wait more than 2 days.

Question 9

An investor is considering an investment in a start-up company. She estimates that she has probability 0.25 of a $ 38,768 loss, probability 0.20 of a $ 19,178 profit, probability 0.15 of a $ 45,529 profit, and probability 0.40 of breaking even (a profit of $0). What is the expected value of the profit?

Write only a number as your answer. Round to the nearest whole number.

Answer 1