Basic Statistics: Tales of Distributions 10th Edition

Published by Cengage Learning
ISBN 10: 0-49580-891-1
ISBN 13: 978-0-49580-891-6

Chapter 7 - Theoretical Distributions Including the Normal Distribution - Problems: 7.5

Answer

We toss 3 coins in the air.

Work Step by Step

(a) The probability of getting either 1 Head or 2 Heads out of 3 flips of a coin is .75. P(1 Head or 2 Heads out of 3 flops) = P(1 Head) + P(2 Heads) = .3750 + .3750 = .75 (b) The probability of getting either all Heads or no Heads out of 3 flips of a coin is .25 P(all Heads or no Heads out of 3 flips) = P(3 Heads) + P(0 Heads) = .1250 + .1250 = .25
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.