# The percentage of the marks obtained by a student in the monthly test are given below:

Find the probability that a student gets more than 70% marks.

Answer

Verified

363.9k+ views

Hint: Try to figure out the number of favourable cases and number of total cases. Also, use probability is nothing but the ratio. Which is the number of favourable cases is the number of total cases.

Given that, the total number of unit tests are 5. Also, the number of subjects in which students cross 70% marks are 3. We know that probability is nothing but the ratio. Which is the number of favourable cases is the number of total cases.

According to the question, the probability that a student gets more than 70% marks $ = \dfrac{{{\text{No}}{\text{. of test in which the student scored more than 70% marks}}}}{{{\text{total number of tests}}}}$ which is equal to $\dfrac{3}{5} = 0.6$.

Hence, the probability that a student gets more than 70% marks is 60%.

Note: Probability is all about ratios starting from 0 and ends from 1. If our favourable cases are high then we are likely to win. And not then we'll tend to lose.

Given that, the total number of unit tests are 5. Also, the number of subjects in which students cross 70% marks are 3. We know that probability is nothing but the ratio. Which is the number of favourable cases is the number of total cases.

According to the question, the probability that a student gets more than 70% marks $ = \dfrac{{{\text{No}}{\text{. of test in which the student scored more than 70% marks}}}}{{{\text{total number of tests}}}}$ which is equal to $\dfrac{3}{5} = 0.6$.

Hence, the probability that a student gets more than 70% marks is 60%.

Note: Probability is all about ratios starting from 0 and ends from 1. If our favourable cases are high then we are likely to win. And not then we'll tend to lose.

Last updated date: 28th Sep 2023

â€¢

Total views: 363.9k

â€¢

Views today: 9.63k

Recently Updated Pages

What do you mean by public facilities

Paragraph on Friendship

Slogan on Noise Pollution

Disadvantages of Advertising

Prepare a Pocket Guide on First Aid for your School

10 Slogans on Save the Tiger

Trending doubts

How do you solve x2 11x + 28 0 using the quadratic class 10 maths CBSE

Fill the blanks with the suitable prepositions 1 The class 9 english CBSE

Difference between Prokaryotic cell and Eukaryotic class 11 biology CBSE

Difference Between Plant Cell and Animal Cell

Why are resources distributed unequally over the e class 7 social science CBSE

Differentiate between homogeneous and heterogeneous class 12 chemistry CBSE

Give 10 examples for herbs , shrubs , climbers , creepers

Briefly mention the contribution of TH Morgan in g class 12 biology CBSE

What is the past tense of read class 10 english CBSE