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September 5, 2015

Homework Help: Stat.

Posted by Nickie on Sunday, January 27, 2013 at 2:12am.

A trick coin has been weighted so that heads occurs
with a probability of p  2
3, and p(tails)  1
3. If you
toss this coin 72 times,
a. How many heads would you expect to get on
average?
b. What is the probability of getting more than 50
heads?
c. What is the probability of getting exactly 50 heads?

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