Question

cumulative frequency distribution. H. W
Score
No. of students
20 - 30 | 30 - 40 40-50
50 - 60
60 - 70
70-80
80 - 90 90 - 10
20
35
40
32
24
27
18
34​

Answer 1

Answer:

The frequency distribution table for the given marks can be drawn as:

(i) The class interval (40−49) has the highest frequency and the class interval (90−99) has the lowest frequency.

(ii) In the class interval (30−39), the lower limit is 30 − 0.5 = 29.5 and the upper limit is

39 + 0.5 = 39.5.

(iii) The range of the given distribution is 97− 32 = 65.