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Probability

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Intern
Joined: 28 Mar 2018
Posts: 1

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28 Mar 2018, 13:55
In one of the general secondary schools examinations it was found that 25% of students failed in math 15% failed in chemistry and 10% failed in math and chemistry a student is chosen at random what is the probability that he 1-failed in math given that he failed in chemistry.
2-failed in chemistry given that he failed in math.

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Joined: 13 Oct 2013
Posts: 136
Concentration: Strategy, Entrepreneurship

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28 Mar 2018, 15:04
is this a DS question?

Akram212 wrote:
In one of the general secondary schools examinations it was found that 25% of students failed in math 15% failed in chemistry and 10% failed in math and chemistry a student is chosen at random what is the probability that he 1-failed in math given that he failed in chemistry.
2-failed in chemistry given that he failed in math.

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Math Expert
Joined: 02 Sep 2009
Posts: 55681

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28 Mar 2018, 20:40
Akram212 wrote:
In one of the general secondary schools examinations it was found that 25% of students failed in math 15% failed in chemistry and 10% failed in math and chemistry a student is chosen at random what is the probability that he 1-failed in math given that he failed in chemistry.
2-failed in chemistry given that he failed in math.

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Posts: 55681

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02 Apr 2018, 02:59
Akram212 wrote:
In one of the general secondary schools examinations it was found that 25% of students failed in math 15% failed in chemistry and 10% failed in math and chemistry a student is chosen at random what is the probability that he 1-failed in math given that he failed in chemistry.
2-failed in chemistry given that he failed in math.

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Re: Probability   [#permalink] 02 Apr 2018, 02:59
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