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UkoKoshka [18]
3 years ago
11

The probability that an individual has​ 20-20 vision is 0.15 0.15. in a class of 49 49 ​students, what is the probability of fin

ding five people with​ 20-20 vision?
Mathematics
1 answer:
Lelu [443]3 years ago
3 0

Answer: This is a Binomial problem where, n=49, p=0.15 and x=5

Therefore,

P(x=5) = nCx P^{x} (1-p)^{n-x}

=49C5 (0.15)^{5} (1-0.15^{49-5}

= 0.1135

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