Chapter 16 Random Variables

Question 1

See below:

Accepted Answer

29.5

Question 2

Find the expected value for: annual cost of medical care for a person who has 1 dog and 1 cat.

Accepted Answer

$220

Question 3

See below. Find the standard deviation of the number of repairs each year.

Accepted Answer

1.32

Question 4

Find the SD for the annual cost of medical care for a person who has one dog and one cat.

Accepted Answer

$46.10

Question 5

Find the expected value for the annual cost of medical care for a couple with four dogs.

Accepted Answer

$400

Question 6

Find the standard deviation for the annual cost of medical care for a couple who has four dogs.

Accepted Answer

$60

Question 7

See below. How many emails should the professor expect to receive each day?

Accepted Answer

2.95

Questions 7