1.

AhuBerisperfectsquare(iv)A prime number less than 20t of the families having three children, a family is chosen random. Find the probability that the family h(i) Exactly one girl(ii) At least one girl(iii) At most one girl

Answer»

A family has 3 ChildrenThus total members in the family = 5

Thus

Probability that family has exactly one girlP = 1/5

Probability that it has At least one girlP = 3/5

Probability that it has utmost girlP = 0



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