Welcome to cbsenotes.com! To post messages or access any member only section, you will need an account. Create your free account now.
CBSE Notes 2011-2012 » XI-Maths

# Statistics-XI

## Find the mean deviation from the median for the data : (i) 34, 66, 30, 38, 44, 50, 40, 60, 42, 51 (i...

Find the mean deviation from the median for the data :
(i) 34, 66, 30, 38, 44, 50, 40, 60, 42, 51 (ii) 22, 24, 30, 27, 29, 31, 25, 28, 41, 42
(iii) 38, 70, 48, 34, 63, 42, 55, 44, 53, 47

## Find the standard deviation of 2, 4, 5, 6, 8, 17.

Find the standard deviation of 2, 4, 5, 6, 8, 17.

## Find the standard deviation of the scores of 10 students. 65, 58, 67, 34, 48, 45, 70, 62, 60, 50.

Find the standard deviation of the scores of 10 students. 65, 58, 67, 34, 48, 45, 70, 62, 60, 50.

## The scores of 10 students in a test, out of maximum marks 50 are as follows : 28, 36, 34, 28, 48, 22...

The scores of 10 students in a test, out of maximum marks 50 are as follows :
28, 36, 34, 28, 48, 22, 35, 27, 19, 41. Find the variance.