Question

in a class of 50 students 70% were passed. what is the probability of failing students​

Answer 1

no. of student passed

$= 50 \times \frac{70}{100}$

$= 35 \: student \: passed$

No. of student failing =

total no. of student - no. of passed.

$50 - 35$

$15 \: student \: failed$

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Answer 2

Step-by-step explanation:

Total number of students = 50

No. of students passed = 50× 70/100

= 35

No. of students failed = No. of students passed - Total no. of students

=50-35

=15

Probability= No. of students failed/Total no. of students

=15/35

=3/7

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