.(i) In a family with four children, what is the probability of having two boys and two...
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.(i) In a family with four children, what is the probability of having two boys and two girls, assuming that both genders are equally likely?
(ii) If we select 10 families, each having four children, find
(a) the probability that at least seven of them will have two boys and two girls;
(b) the expected number of families with two boys and two girls.
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Related Book For 
Introduction To Probability Volume 2
ISBN: 9781118123331
1st Edition
Authors: Narayanaswamy Balakrishnan, Markos V. Koutras, Konstadinos G. Politis
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