Question

39.
The following table gives the performance of 90 students in a mathematics test of 100 marks.
Marks
0-20
20-30
30-40
40-50
50-60
60-70
70-100
Number of Students
10
10
20
20
15
8
Represent the given information with the help of histogram.​

Answer 1

Answer:

M = N

2

M = 83

2

= 41.5

M = L1 +i (m-c)

f

M= 40+ 10 (41.5 - 20)

20

40+ 10.75

= 50.75