The percentage of marks obtained by a student in monthly unit tests are given below:

Find the probability that the student gets more than $70 \%$ marks."

Given:

The percentage of marks obtained by a student in monthly unit tests.

To do:

We have to find the probability that the student gets more than $70 \%$ marks.

Solution:

Total number of unit tests $=5$

Number of times the student gets more than $70 \%$ marks $=3$

We know that,

Probability of an event=$ \frac{Number \ of \ favourable \ outcomes}{Total \ number \ of \ outcomes}$

Therefore,

Probability that the student gets more than $70 \%$ marks $=\frac{3}{5}$

$=0.6$

This implies,

The probability that the student gets more than $70 \%$ marks is $0.6$.   

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Updated on: 10-Oct-2022

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