Question

The mark obtained by 30 students in a competitive exam are given below:
Marks No of students
70 3
58 5
61 4
52 7
65 6
75 2
68 3

One student is chosen at random. Find the probability:
[i] That the student scored more that 65 marks
[ii] That the marks scored by the student is a an odd number

Answer 1

(1) The probability that student scored more than 65 marks
= 8/30
= 4/15

(2) The probability that the marks scored by the student is an odd no
= 12/30
= 2/5.

Answer 2

here is your answer
Hope it helps