CBSE Class 12 Math 2023 Outside Delhi Set 1 Solved Paper

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Question : 37
Total: 38
Recent studies suggest that roughly 12% of the world population is left handed.
Depending upon the parents, the chances of having a left handed child are as follows :
A : When both father and mother are left handed :
Chances of left handed child is 24%.
B : When father is right handed and mother is left handed :
Chances of left handed child is 22%.
C : When father is left handed and mother is right handed :
Chances of left handed child is 17%.
D : When both father and mother are right handed :
Chances of left handed child is 9\%.
Assuming that P(A)=P(B)=P(C)=P(D)=
1
4
and L denotes the event that child is left handed.
Based on the above information, answer the following questions :
(i) Find P(LC)
(ii) Find P(LA)
(iii) (a) Find P(AL)
OR
(b) Find the probability that a randomly selected child is left handed given that exactly one of the parents is left handed.
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