SOLUTION: Suppose that you are in a class of 29 students and it is assumed that approximately 15% of the population is left-handed. (Give your answers correct to three decimal places.)

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Question 866771: Suppose that you are in a class of 29 students and it is assumed that approximately 15% of the population is left-handed. (Give your answers correct to three decimal places.)
Answer by ewatrrr(24785) About Me  (Show Source):
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what is the question?


Hi

p(lh) = .15,  n = 29

a) Compute the probability that exactly five students are left-handed.

P(x = 3) = binompdf(29, .15, 3) = .180

(b) Compute the probability that at most four students are left-handed.

P(x ≤ 4) = binomcdf(29, .15, 4)= .555 

(c) Compute the probability that at least six students are left-handed. 

P(x ≥ 3) = 1 - binomcdf(29, .14, 2) = .832