# 11th Class Statistics MCQS Chapter 4

#### 11th Class Statistics MCQS

Mean deviation is always.
Less then S.D
More than S.D
Equal to S.D
Negative

The most popular measure of dispersion in industry and meteorology is.
Range
Standard deviation
Mean deviation
Quartile deviation

Which is a poor measure of dispersion in open-end distribution.
A.M
Standard deviation
Variance
Range

First moment about mean is always equal to
Zero
One
Positive
Negative

For symmetrical distributions the values of co-efficent of skewness is
Negative Number
Positive Number
Imaginary Number
Pure Number

The sum of absolute deviation form median is.
zero
maximum
negative
least

Quartile Co-efficient of skewness is also called as
Median co-efficent of skewness
Pearsons 1st co-efficient of skewness
None of these
Pearsons 2nd co-efficient of skewness

If Mean = 25 and S2 =25 the C.V is
100%
20%
25%
None of these

Standard deviation is always calculate form:
Mean
Mode
All of the above
Median

First moment about mean is always equal to.
Variance
Zero
Standard deviation
1

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