Question

Assuming that babies born at a major U.S. hospital are equally likely to be male and female (p=0.5), what is the probability that more than 55 out of the next 100 births at the hospital are female?

          Assuming that babies born at a major U.S. hospital are equally
likely to be male and female (p=0.5), what is the probability that
more than 55 out of the next 100 births at the hospital are
female?
        

Added by April H.

Elementary Statistics a Step by Step Approach
Elementary Statistics a Step by Step Approach
Allan G. Bluman 9th Edition
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Assuming that babies born at a major U.S. hospital are equally likely to be male and female (p=0.5), what is the probability that more than 55 out of the next 100 births at the hospital are female?
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Transcript

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00:01 In this problem, we are given that the babies who are born in us hospital, they are equally likely to be either female or male.
00:08 And the probability of the success is given at 0 .5, which is the probability of the baby being a female.
00:16 And it's observed that 100 birds takes place in the hospital, and we are required to find the probability that more than 55 of them are females.
00:31 So we will consider this as binomial distribution in which the number of trials is 100 and the probability of the failure.
00:39 Well that would be 1 minus probability of the success...
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