Q. 84.6( 19 Votes )

1500 families with 2 children were selected randomly, and the following data were recorded:



If a family is chosen at random, compute the probability that it has:

(i) No girl

(ii) 1 girl

(iii) 2 girls

(iv) At most one girl

(v) More girls than boys.

Answer :

Explanation:


Given:


Total number of families = 211 + 814 + 475 = 1500


(i) Number of families having no girl = 211


Required probability


(ii) Number of families having one girl


(iii) Number of families having 2 girls


(iv) Number of families having at most one girl


(v) Number of families having more girls than boys


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