Students of two sections A and B of a class show the following results in a test conducted for 100 marks.
Section A | Section B | |||||
Number of students | 50 | 60 | ||||
| Average marks in the | test | 45 | 45 | ||
Average marks in the | ||||||
test | ||||||
| Variance of distribution | of marks | 64 | 81 | ||
Variance of distribution | ||||||
of marks |
Then
variability of section 
variability of section 
variability of section 
Text Solution
Verified by ExpertsA
Average marks of section 
and section 
in the test is same, but the variance of distribution of marks of section 
is greater than section 
.
Variability of section 
variability of section 
.
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