Q. 165.0( 2 Votes )

In a survey of 100 families having 2 or less boys. The following data was obtained:


If one of the given families is chosen at random, what is the probability that the chosen family has

(i) 1 boy? (ii) 2 boys? (iii) no boy?

Answer :

Total number families surveyed = 100


Number of families having no boys = 18


Number of families having one boy = 46


Number of families having two boys = 36


Probability P() =


(i) Probability of family having one boy


P(one boy) =


(ii) Probability of family having 2 boys


P(two boy) =


(iii) Probability of family having no boy


P(no boy) =


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