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Question

Out of 50 students in a class taking a test, 35 of them passed whereas the other 15 failed. What is the probability that a student drawn at random passed the exam?


A

0.15

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B

0.3

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C

0.35

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D

0.7

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Solution

The correct option is D

0.7


Total number of students in a class = 50

Number of students who passed an examination = 35

Probability that a student passed the exam = Number of students who passed an examinatioTotal number of students in a class

Probability that a student passed the exam = 3550=0.7.


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