Math 30-2

Unit 4: Probability

Lesson 3: Mutually Exclusive Events

I need a solution for these questions please. their will be a answer key after the questions below that my teacher gave it to me. thank you

7. A crds is drawn from a standard deck. Use an appropriate formula to determine the

probability that

a) a face card or a diamond is drawn b) a black card or a heart is drawn

c) a nine or a diamond is drawn d) a seven of clubs or a King is drawn

e) a red card or a club is drawn f) a Queen or a black card is drawn

11. The probability that Andrew will play a board game this weekend is 0.5. The probability

that he will each pizza is 0.3. The probability that he will do neither is 0.25. What is the

probability that he will do at least one of these things?

12. In a group of 90 grade 12 students, 55 students liked fruit juice, 23 liked both fruit juice

and sandwiches, and 18 liked neither fruit juice nor sandwiches. What is the probability, to

the nearest hundredth, that a students selected at random from the group liked only fruit

juice?

answer key

7. a) 11/26, b) 3/4, c) 4/13, d) 5/52, e) 3/4, f) 7/13

11. 0.75

12. 0.19