Question

Find the following data of the marks obtained by students of class X
Marks No of students
0-10 8
10-20 12
20-30 20
30-40 30
40-50 10
50-60 10

I) How many students secured less than 40 marks?
a) 70 b) 40 c) 80 d) 30

II) What is the upper limit of modal class?
a) 10 b) 20 c) 30 d) 40

III) The upper limit of median class is_

IV) Cumulative frequency table is constructed to determine
a) Mean b) Median c) Mode d) All these

Answer 1

answer:

1. d - 30
2. d - 40
3. 20
4. b - median