34. India faces a major population crisis due the growing population. India ranks second in list of most populated countries. So KailashVidyarthi's NGO decided to start a Campaign related to family planning and its benefit to our society, for this purpose, they collect some data of 2000 families. According to the collected data, out of 2000 families, 650 families have 1 child, 450 families have 2 children, 250 families have 4 children and rest of families have more than 4 children. Then, answer the following questions, which are based on above data i) Find the probability of having 1 child. ii) Find the probability of having 2 children ii) Find the probability of having 3 children iv) Find the probability of having 4 children. v) Find the probability of having more than 300 250 200 150 100 50 y=2.6258x-5053 R ^ 2 = 0.9992 1960 1970 1980 1990 2000 2010 2020
Answers
Given : Survey of 2000 Families
650 families have 1 child,
450 families have 2 children
250 families have 4 children
rest of families have more than 4 children.
To Find : probability of having 1 child
probability of having 2 children
probability of having 3 children
probability of having more than 4 children
Solution:
650 families have 1 child,
450 families have 2 children
250 families have 4 children
rest of families have more than 4 children. = (2000 - 650 - 450 - 250)
= 650
probability of having 1 child = 650/2000 = 13/40
probability of having 2 children = 450/2000 = 9/40
probability of having 3 children = 0/2000 = 0
probability of having more than 4 children = 650/2000 = 13/40
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