Mean Deviation: Statistics #!#NCERT

60 students of Section A of Class XI, obtained 40 mean marks in Statistics, 40 students of Section B obtained 35 mean marks in Statistics. Find out mean marks in Statistics for Class XI as a whole.

Mean Deviation (Mean deviation for ungrouped data or Individual Responses) Explain with some examples

The mean of he marks in Statistics of 100 students in a class was 72 . The mean of marks for boys was 75, while their number was 70. The mean of marks of girls in the class was

Measures Of Dispersion|Mean Deviation|Mean Deviation For Grouped Data|Questions|Shortcut Method For Calculating Mean Deviation About Mean|Questions|OMR

Measures Of Dispersion|Mean Deviation|Mean Deviation For Grouped Data|Questions|Shortcut Method For Calculating Mean Deviation About Mean|Questions|OMR