will you get her??? Very less probab....

Probability Level 1

A class consists of 80 students.25 girls and 55 boys . out of which 10 are rich 70 poor and 20 fair. Find the probability of selecting a fair rich girl(student picked at random)

0.625 5/512 1/4 1/512

Hrit Gup by hrit gup , 23, India

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1 solution

Hrit Gup
Aug 11, 2014

probability of picking girl=25/80
probability of picking fair girl=20/80 probability of picking rich girl=10/80

overall probability=(25/80)x(20/80)x(10/80) =5/512

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I would disagree. This assumes that all of your variables are independent of each other, but that is not possible in your given scenario.

If there are x x fair, rich girls, then the probability would be x 80 \frac{x}{80} .

Calvin Lin Staff - 6 years, 10 months ago

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