CBSE Class 12 Math 2023 Outside Delhi Set 1 Solved Paper
© examsiri.com
Question : 37 of 38
Marks:
+1,
-0
Recent studies suggest that roughly of the world population is left handed.
A : When both father and mother are left handed :
Chances of left handed child is .
B : When father is right handed and mother is left handed :
Chances of left handed child is .
C : When father is left handed and mother is right handed :
Chances of left handed child is .
D : When both father and mother are right handed :
Chances of left handed child is 9\%.
Assuming that and denotes the event that child is left handed.
Based on the above information, answer the following questions :
(i) Find
(ii) Find
(iii) (a) Find
OR
(b) Find the probability that a randomly selected child is left handed given that exactly one of the parents 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 .
B : When father is right handed and mother is left handed :
Chances of left handed child is .
C : When father is left handed and mother is right handed :
Chances of left handed child is .
D : When both father and mother are right handed :
Chances of left handed child is 9\%.
Assuming that and denotes the event that child is left handed.
Based on the above information, answer the following questions :
(i) Find
(ii) Find
(iii) (a) Find
OR
(b) Find the probability that a randomly selected child is left handed given that exactly one of the parents is left handed.
Solution:
© examsiri.com
Go to Question: