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Question

There are 40 students in a class and their results is presented as below :

Result (Pass/Fail)PassFail
Number of Students3010

If a student chosen at random out of the class, find the probability that the student has passed the examination.


A
0.75
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B
0.6
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C
0.45
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D
0.30
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Solution

The correct option is A 0.75
Total number of chances =40
Chances or trials which favour a student to pass =30
The probability of the required event, i.e., the student has passed the examination =3040=0.75

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