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trasher [3.6K]
2 years ago
7

An unfair coin with .4 probability of tails is flipped 7 times what is the probability of obtaining exactly 5 heads

Mathematics
1 answer:
steposvetlana [31]2 years ago
5 0
P(heads) = 1 - 0.4 = 0.6P(5\ heads)=7C5\times0.6^{5}\times0.4^{2}=0.2613
The answer is 0.26 to 2 d.p.
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