(a) (b) the probability that tails will show up 9 times when this coin is tossed 12 times; the probability that heads will show up 8 times when the coin is tossed 12 times.

A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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3. When a defective coin is tossed, there is a 55% chance that tails will show up. Find:
(a) the probability that tails will show up 9 times when this coin is tossed 12 times;
(b) the probability that heads will show up 8 times when the coin is tossed 12 times.
Transcribed Image Text:3. When a defective coin is tossed, there is a 55% chance that tails will show up. Find: (a) the probability that tails will show up 9 times when this coin is tossed 12 times; (b) the probability that heads will show up 8 times when the coin is tossed 12 times.
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