Question

5. The marks obtained by a student in five tests
are as follows:
Test Number
Marks obtained
1
62
72
3
78
er N
4
91
85
If one of the test is chosen at random, find the
probability that the student scored (1) more
than 90 marks and (2) scored between 70
and 80 marks in that test.​

Answer 1

Answer:

5. The marks obtained by a student in five tests

are as follows:

Test Number

Marks obtained

1

62

72

3

78

er N

4

91

85

If one of the test is chosen at random, find the

probability that the student scored (1) more

than 90 marks and (2) scored between 70

and 80 marks in that test.