1
MHT CET 2021 24th September Morning Shift
+2
-0

The arithmetic mean of marks in Mathematics for four divisions A, B, C and D were $$80,75,70$$ and 72 respectively. Their standard deviations were $$12,6,8$$ and 10 respectively. Then, division ______ has more uniformity.

A
D
B
B
C
C
D
A
2
MHT CET 2021 23rd September Evening Shift
+2
-0

If the standard deviation of data is 12 and mean is 72, then coefficient of variation is

A
15.67%
B
14.67%
C
13.67%
D
16.67%
3
MHT CET 2021 23th September Morning Shift
+2
-0

140. Given that total of 16 values is 528 and sum of the squares of deviation from 33 is 9158. The variance is

A
562.73
B
570.375
C
574.375
D
572.375
4
MHT CET 2021 22th September Evening Shift
+2
-0

Following data shows the information about marks obtained in Physics, Chemistry, Mathematics and Biology by 100 students in a class. Then subject shows the highest variability in marks

Physics Chemistry Mathematics Biology
Mean 20 25 23 27
S.D. 3 2 4 5

A
Mathematics
B
Chemistry
C
Biology
D
Physics
EXAM MAP
Medical
NEET