Answered: A fast-food restaurant attaches prize…

College Algebra

10th Edition

ISBN:9781337282291

Author:Ron Larson

Publisher:Ron Larson

Chapter8: Sequences, Series,and Probability

Section8.7: Probability

Problem 3ECP: You toss two six-sided dice. What is the probability that the total of the two dice is 5?

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Question

19. A fast-food restaurant attaches prize coupons to the cups used to serve large drinks. Seventy percent (70%) of the coupons say “Play Again,” 15% say “Win a free small drink,” 10% say “Win a free ice cream cone,” and the rest say “Win a free burger.” Given what you know about probability and probability models, which one of the following statements must be correct?

1. More than 10% of the coupons say “Win a free burger.”

2. The proportion of coupons that say “Win a free burger” is equal to 0.50.

3. If we randomly select one customer who has received a prize coupon, there is a 5% chance that coupon says “Win a free small drink” or “Win a free ice cream cone.”

4. If we randomly select one customer who has received a prize coupon, there is a 25% chance that coupon says “Win a free small drink,” “Win a free ice cream cone,” or “Win a free burger.”

5. If we randomly select one customer who has received a prize coupon, there is a 15% chance that coupon says “Win a free ice cream cone” or “Win a free burger.”

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