+0  
 
0
36
1
avatar

The marks obtained by 50 students in a class is as shown below.

Marks 30 40 50 60 70 80
Frequency 3 4 16 14 8 5

Determine

a) The mode

b) Interquartile range

c) Quartile deviation

d) Pass mark if 65% of the students were to pass

 Jun 16, 2022
 #1
avatar
0

Mode - 50

inter quartile range = 70-50 = 20

quartile deviation = 20/2 = 10


if 65% students were passed then passing mark is between 50 and 60

 Jun 17, 2022

8 Online Users