The results of a study showed that heterosexual women, during ovulation, were si

Question

The results of a study showed that heterosexual women, during ovulation, were significantly better at correctly identifying the marriage status of a man from a photograph o his ace than women who were not ovulating. Near ovulation on average women correct identified the marriage status of about % of the 100 men shown to them. Assume that the sample distribution for this study is unimodal and symmetric and that the samples are collected randomly. If this is the probability of correctly identifying the marriage status of a man in any given photograph, what is the probability a woman would correctly classify 75 or more of the men? ovulation-onanv symmetric and that thlassily 75 or more of The probability is (Round to five decimal places as needed.)

Explanation / Answer

Solution :

Given that n = 100 , p = 0.67

=> q = 1 - p = 0.33

The probability is

=> P(x >= 75) = 0.05291

Formula :

for binomial distribution nCr*p^r*q^(n-r)

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