Question

25. Following table shows marks obtained by 30 students in a test
3M
Marks
No. of students
1 - 10
7
11 - 20
10
21 - 30
6
31 - 40
4
41 SO
3
Out of these, one student is chosen at random. What is the probability that the marks of the
chosen student are
(i) 30 or less
(ii) 31 or more (iii) lying in the interval 21 - 30?
21 7 1
21 7 1
23 8 1
23 71
(b)
(c)
id
30 30 6
30' 30' 5
30 505
30 30 5
*****​

Answer 1

Answer:

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Answer 2

Answer:

23

7

6

Step-by-step explanation:

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