Question

the percentage of marks obtained by a student in the monthly unit tests are given below:
Unit test : 1 2 3 4 5
Percentage of marks obtained:69 71 73 68 74
Based on this data,find the probability that the student gets more than 70% marks in unit test.​

Answer 1

Answer:

3/5

Step-by-step explanation:

TOTAL NO. OF TESTS N(S)= 5

FAVOURABLE NO. OF ELEMENTARY EVENTS N(E)=3 (71,73,74)

P(E)=N(E)/N(S)

=3/5

Thanks.....

Answer 2

Answer:

hi

Step-by-step explanation:

Total no. of unit tests =5

Number of tests in which the student scored more than 70% marks =3

Therefore,

Probability that a student gets more than 70% marks =  

Total no. of tests

No. of tests in which the student scored more than 70% marks

​  

 

=  

5

3

​  

=0.6