Suppose that 97% of the population is not lactose intolerant. If you were to randomly select...
- Suppose that 97% of the population is not lactose intolerant.
- If you were to randomly select 3 people at random, what is the probability that all of them are not lactose intolerant? Assume that each selection is made with replacement.
- If you were to randomly select 3 people at random, what is the probability that at least one of them is lactose intolerant? Assume that each selection is made with replacement.
- If you were to randomly select 3 people at random, what is the probability that only the third person selected will be lactose intolerant? Assume that each selection is made with replacement.
Homework Answers
a)
0.97^3 = 0.91267
b)
P(atleast 1 is latose intollerant) = 1- P(all 3 not latose intolerant) =1 - 0.91267 = 0.08733
c)
P(x=1) = C(3,1)*(0.97^2)*(0.03) = 3*(0.97^2)*(0.03) = 0.08468
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