Find the mean deviation about the mean for the following data: $12, 3, 18, 17, 4, 9, 17, 19, 20, 15, 8, 17, 2, 3, 16, 11, 3, 1, 0, 5$.
- A$6.2$
- B$6.5$
- C$6.8$
- D$7.0$
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Find the mean deviation about the mean for the following data:
Marks obtained $0-20$ $20-40$ $40-60$ $60-80$ $80-100$ Number of students $10$ $8$ $12$ $9$ $11$
| Marks obtained | $0-20$ | $20-40$ | $40-60$ | $60-80$ | $80-100$ |
| Number of students | $10$ | $8$ | $12$ | $9$ | $11$ |
The mean deviation about the mean for the following data is:
$\text{Marks obtained}$ $0-10$ $10-20$ $20-30$ $30-40$ $40-50$ $\text{Number of Boys}$ $6$ $8$ $10$ $4$ $2$
| $\text{Marks obtained}$ | $0-10$ | $10-20$ | $20-30$ | $30-40$ | $40-50$ |
| $\text{Number of Boys}$ | $6$ | $8$ | $10$ | $4$ | $2$ |
If the mean deviation about the median of $x, 2x, 3x, 4x, 5x, 6x, 7x, 8x, 9x, 10x$ is $30$,then $|x|$ equals:
Medium
View SolutionThe mean deviation about the mean for the following data is
Class Interval $0-4$ $4-8$ $8-12$ $12-16$ Frequency $4$ $3$ $2$ $1$
| Class Interval | $0-4$ | $4-8$ | $8-12$ | $12-16$ |
| Frequency | $4$ | $3$ | $2$ | $1$ |
The mean deviation about the median for the following data $6, 3, 4, 9, 2, 7, 11$ is
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