Question

62
A survey report of 1000 families with maximum 3 children in a locality was
as follows:
No. of children No. of girls
No. of boy's No. of families
0
0
0
36
1
0
1
1
1
0
40
2
0
2
115
2
1
1
213
2
2
0
82
3
0
3
135
3
1
2
165
3
2
1
120
3
3
0
32
Total
1000
Find the probability that a family chosen other than these, having maximum
3 children, will have
a) One child only
b) one girl and one boy
c) at least one girl
d) at most one girl
e) at least two boys​

Answer 1

Answer:

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