Question

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Answer 1

what is n and p??

Answer 2

i guess if you are talking about the binomial distribution
\[P(x=k)=\binom{n}{k}p^k(1-p)^{n-k}\] thehn \(n=20,p=\frac{1}{5}\)

Answer 3

It says also that
In order to pass the test, you need to get at least 14 answers right.

Answer 4

would that be x=>14