Measure of Dispersion
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Q.
Which of the following is an absolute measure of dispersion?
Range
Mean Deviation
Standard Deviation
All of these
Q.
Mean deviation of through mean is
None of these
Q.
Which of the following defines Range of a given data set.
Minimum value
Most occurring value
Maximum value - minimum value
Maximum value
Q. The mean deviation about the mean for the data {1, 2, 3, -3, -2, -1} is .
- 1.71
- 2
- \N
- 4
Q. Let r be the range and S2=1n−1∑ni=1(xi−¯¯¯x)2, where S is the S.D. of a set of observations x1, x2.....xn, then
- S≤r√nn−1
- S=r√nn−1
- S≥r√nn−1
- None of these