Q1. Out of 800 families with 4 children each, how many families would be expected to have – (i) no girls ? Assume equal probabilities for boys and girls.
Answers
Answered by
2
Given : 800 families with 4 Children , equal probabilities for boys and girls.
To find : how many families would be expected to have – (i) no girls
Solution:
Probability of Girls = 1/2
Probability of Boy = 1/2
No girls means all boys
=> probability of no girls = Probability of all 4 boys = ⁴C₄(1/2)⁴
= 1/16
Total Families = 800
families would be expected to have no girls = 800 (1/16)
= 50
50 Families expected to have no Girls
Learn More:
Out of 128 families with 4children each,how many expected to have ...
https://brainly.in/question/12810151
In a Family of 3 children find probability of having at least one boy ...
https://brainly.in/question/7700718
Similar questions