Page 1 - WS

SAI International School
CLASS - X

Mathematics
CHAPTER-14: Statistics

Scanner-2

SUBTOPIC : Mode Of Grouped Data

1.The sum of the lower limit and upper limit of modal class for the following frequency
distribution:-
Size of Items 0 - 4 4 - 8 8 - 12 12 - 16 16 - 20

Frequency 5 7 9 17 12
(a) 17
(b) 16
(c) 20
(d) 28
2.The following distribution gives the state-wise teacher-student ratio in higher secondary
schools of India. Find the frequency of the class succeeding the modal class.
Number of Students per teacher Number of States/U.T.
15 - 20 3
20 - 25 8
25 - 30 9
30 - 35 10
35 - 40 3
40 - 45 0
45 - 50 0
50 - 55 2
(a) 8
(b) 9
(c) 3
(d) 0
3.The frequency of the class preceding the modal class for the following frequency table is:
Class 1 - 3 3 - 5 5 - 7 7 - 9 9 - 11
Frequency 7 8 2 2 1
(a) 8
(b) 7
(c) 2
(d) 1
1