Random Sampling Probability Puzzle

ISHAN
Member • Sep 8, 2011

Random Sampling Probability Puzzle
A random sample of 200 adults is classified is below according to gender and level of education attained

[TABLE="class: grid"]
[TR]
[TD]Education[/TD]
[TD]Male[/TD]
[TD]Female[/TD]
[/TR]
[TR]
[TD]Elementary[/TD]
[TD]38[/TD]
[TD]45[/TD]
[/TR]
[TR]
[TD]Secondary[/TD]
[TD]28[/TD]
[TD]50[/TD]
[/TR]
[TR]
[TD]College[/TD]
[TD]22[/TD]
[TD]17[/TD]
[/TR]
[/TABLE]

If a person is selected at random from this group, find the probability that-
1. The person is male provided given that the person has secondary education
2. The person does not have a college degree, given that the person is a female.
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Reya

Member • Sep 15, 2011

O.36 and 0.85?

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Reya

Member • Sep 15, 2011

Method:

M-a person is a male
S-a person has a secondary education
C-a person has a college degree

a)P(M/S)=28/78
b)P(C'/M')=95/112

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CIVILPRINCESS

Member • Sep 15, 2011

Reya
Method:

M-a person is a male
S-a person has a secondary education
C-a person has a college degree

a)P(M/S)=28/78
b)P(C'/M')=95/112
even i'm getting the same answer! 😀

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