Suppose your experiment consists of repeatedly throwing two fair coins,  with "success" when both coins come up "heads".  What is the probability of having exactly 2 successes out of 3 trials?

College Algebra
10th Edition
ISBN:9781337282291
Author:Ron Larson
Publisher:Ron Larson
Chapter8: Sequences, Series,and Probability
Section8.7: Probability
Problem 11ECP: A manufacturer has determined that a machine averages one faulty unit for every 500 it produces....
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Suppose your experiment consists of repeatedly throwing two fair coins,  with "success" when both coins come up "heads". 

What is the probability of having exactly 2 successes out of 3 trials? 

Enter your number  as "0.???",  rounding to three digits after decimal point. For example, if your answer is 1/3 you would enter 0.333, and if your answer is 2/3 enter 0.667.  

 

Suppose your experiment consists of repeatedly throwing two fair coins,  with "success" when both coins come up "heads". 

What is the probability of having the first success on trial number 5?

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