Question: Question 4 - A researcher knows that in a given neighbourhood, 45% of the households have incomes over $100,000. What is the probability that in

Question 4 - A researcher knows that in a given neighbourhood, 45% of the households have incomes over $100,000. What is the probability that in a random sample of 10 households from that neighbourhood:

(a) exactly 5 households will have incomes over $100,000?

(b) 3 or fewer households will have incomes over $100,000?

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