EASY
JEE Main/Advance
IMPORTANT
Earn 100

If the mean deviation of 15 numbers is  25 then what is the sum of the absolute deviations from the mean.

Important Questions on Statistics

EASY
JEE Main/Advance
IMPORTANT
Gamma Question Bank for Engineering Mathematics>Chapter 17 - Statistics>Assignment>Q 3
If the variance of a data is1024, then find the standard deviation of the data.
EASY
JEE Main/Advance
IMPORTANT
Gamma Question Bank for Engineering Mathematics>Chapter 17 - Statistics>Assignment>Q 4
If the co-efficient of variation of the data is 21 and the mean is 75.Find the standard deviation of the data
EASY
JEE Main/Advance
IMPORTANT
Gamma Question Bank for Engineering Mathematics>Chapter 17 - Statistics>Assignment>Q 5

Find the range of the given data :

136, 141, 322, 342, 364, 612, 413, 218, 618

EASY
JEE Main/Advance
IMPORTANT
Gamma Question Bank for Engineering Mathematics>Chapter 17 - Statistics>Assignment>Q 6
The mean of 10 observations is 12 and their standard deviation is 6 . Find the sum of the squares of all the observations.
EASY
JEE Main/Advance
IMPORTANT
Gamma Question Bank for Engineering Mathematics>Chapter 17 - Statistics>Assignment>Q 7
The standard deviation of 10 observations is 16 . If 2 is subtracted from each observation then find the new standard deviation.
EASY
JEE Main/Advance
IMPORTANT
Gamma Question Bank for Engineering Mathematics>Chapter 17 - Statistics>Assignment>Q 8
The standard deviation of 60 observations is 25. If -2 is multiplied to each observation then find the new variance.
EASY
JEE Main/Advance
IMPORTANT
Gamma Question Bank for Engineering Mathematics>Chapter 17 - Statistics>Assignment>Q 9
If the standard deviation of the data is 16 and the mean is 45, find the co-efficient of variation.
MEDIUM
JEE Main/Advance
IMPORTANT
Gamma Question Bank for Engineering Mathematics>Chapter 17 - Statistics>Assignment>Q 10
Find the mean deviation from the median for the following data:
3,9,6,8,4,12,19,21