Question

3) a) The probability that Rajesh will score more than 90 marks in class test is 0.75. What is the probability that Rajesh will secure more than 90 marks in three out of four class tests?

Answer 1

Hey there! ^_^
Praneeth from Brainly.in here to help!

Given probability of Rajesh scoring more than 90 is 0.75

0.75=75/100=3/4

So Rajesh can score 3 times more than 90 In 4 chances

Probability of Rajesh getting more than 90 in 3 out of 4 test = 0.75/3/4 =1/1

Probability of Rajesh scoring more than 90 in 3 out of 4 tests is 1 /1 or 1

hope helped!

Answer 2

◆Ekansh Nimbalkar◆
hello friend here is your required answer