1) One urn contains one black ball and one gold ball. A second urn contains one white and

one gold ball. One ball is selected at random from each urn.

a. Show the sample space for this experiment. Use your own representation for the colors

of the balls.

b. Describe the event that both balls will be of the same color?

c. Describe the event that one ball will be blue?

2) From a small town 120 persons were selected at random and asked the following questions:

Which of the three shampoos, Palmolive, Dove, and Clear, are you using? The following

results were obtained: 20 use Palmolive and Clear, 10 use Palmolive and Dove but not Clear,

15 use all three, 30 use Clear only, 35 use Dove but not Clear, 25 use Dove and Clear, and 10

use none of them. Using Venn diagram, determine how many use

a. Palmolive only?

b. Only Dove?

c. Palmolive and Dove?