Homework Answers
Answer to question# 1)
p = 0.07 ( or 7%)
total people selected n = 4
we need to find the probability that none of them is high tops this implies x = 0
.
We use the formula of binomial probability here as follows:
P(X=x) = nCx * p^x * (1-p)^(n-x)
on plugging the values we get:
P(X=0) = 4C0 * 0.07^0 * 0.93^4
P(x=0)= 1 *1 * 0.7481
P(X=0) = 0.7481
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