In a survey of 100 families having 2 or less boys. The following data was obtained:
Number of boys in a family | 0 | 1 | 2 |
Number of families | 18 | 46 | 36 |
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?
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) =