There are $50$ students in a class and their results is below:

Result (Pass/Fail)

Pass

Fail

No. of students

$35$

$15$

If a student chosen at random out of the class (i.e., without any bias), find the probability that the student is not failing (i.e., the student passed the examination).

0.7

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0.66

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0.9

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1

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Solution

The correct option is C $0.7$
Total number of students $= 50$
Number of students passed $= 35$
Probability, student is not failed $=$ probability that student is passed $= \frac{35}{50} = 0.7$

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There are 50 students in a class and their results is below: Result (Pass/Fail) Pass Fail No. of students 35 15 If a student chosen at random out of the class (i.e., without any bias), find the probability that the student is not failing (i.e., the student passed the examination).

The correct option is C 0.7Total number of students =50Number of students passed =35Probability, student is not failed = probability that student is passed =3550=0.7

There are $50$ students in a class and their results is below:

Result (Pass/Fail)

Pass

Fail

No. of students

$35$

$15$

If a student chosen at random out of the class (i.e., without any bias), find the probability that the student is not failing (i.e., the student passed the examination).

The correct option is C $0.7$
Total number of students $= 50$
Number of students passed $= 35$
Probability, student is not failed $=$ probability that student is passed $= \frac{35}{50} = 0.7$