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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