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#### Competitive Statistics MCQs – Up To Date Measures Of Dispersion ( Statistics ) MCQs

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#### Latest Statistics MCQs

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**Measures Of Dispersion ( Statistics )****Mean deviation, Variance and Standard Deviation of the values 4,4,4,4,4,4 is_______________?**

A. 8

B. 4

C. 2**D. 0**

**The variance of 5 numbers is 10. If each number is divided by 2, then variance of new number is_____________?**

A. 5

B. 20**C. 2.5**

D. 0

**The mean deviation of the values, 18, 12, 15, is_______________?**

A. 3

B. Zero

C. 6**D. 2**

**Lowest value of variance can be____________?**

A. 3

B. -1

C. 1**D. 0**

**If the standard deviation of the values 2,4,6,8 is 2.33, then the standard deviation of the values 4,6,8,10 is_____________?**

A. 4.66**B. 2.58**

C. 0

D. 2.33

**If Y=-8X – 5 and SD of X is 3, then SD of Y is______________?**

A. 3

B. 8**C. 24**

D. None of these

**Variance remains unchanged by change of_____________?**

**A. Origin**

B. Both

C. Scale

D. None of these

**If all values are same then the measure of dispersion will be?**

A. Mean**B. 0**

C. 1

D. Mode

E. Median

**The shape of the symmetrical distribution is _______?**

A. J- Shaped

B. U- Shaped**C. Bell- Shaped**

D. None of these

**The sum of absolute deviations from median is _____?**

A. Positive

B. Zero**C. Least**

D. None of these

#### Binomial And Hyper-Geometric Probability MCQs

**The variance of 4,4,4,4,4,4 is _______________?**

A. 8

B. (4)2

C. 4

D. None of these

**If third moment about mean is equal to zero, then distribution is ______________?**

A. positively skewed**B. Symmetrical**

C. Negatively skewed

D. None of these

**If variance iv standard deviation is minimum if the deviation taken from______________?**

A. Average**B. Mean**

C. Mode

D. G.M.

**________ is the simplest means of dispersion?**

A. Variation

B. Standard deviation

C. C.V.**D. Range**

**First movement about mean is always equal to ___________?**

A. 1

B. S.D.**C. Zero**

D. None of these

**The standard deviation is affected by the value of every____________?**

A. Absolute**B. Observation**

C. Relative Dispersion

D. Items

**Check the consistency used _____________?**

A. Mean coefficient

B. Coefficient of dispersion**C. Coefficient of variance**

D. Q.D.

**__________ of the distribution which is measured relative to the distribution known as Normal?**

A. Normal**B. Flatness**

C. Skewed

D. Moment

**In symmetrical distribution, the co-efficient of skewness is equal to ______________?**

A. +1

B. -1**C. 0**

D. None of these

**Quartile deviation is not capable of manipulation______________?**

A. mathematically

B. Easy

C. Abjectly**D. Algebraic**

**The measure of relative dispersion is called __________________?**

A. Mean dervation

B. Quartile deviation

C. Mean coefficient**D. Coefficient of quartile Deviation**

**Second moment about mean is always equal to _____________?**

A. C.V.

B. S.D.**C. Variance**

D. Square

**The lack of uniformity is called ______________?**

A. variation

B. Lack

C. X= 5**D. Skewness**

#### Sampling MCQs

**If y= ax + b the S.D. of y is _______________?**

A. Minimum

B. Mean Deviation of x**C. S.D. of x**

D. Maximum

**If y= bx + c the range of y is ________?**

A. Range of x**B. Quartile of X**

C. Range of P

D. Zero

**which is poor measure of dispersion in open-end distribution ________________?**

A. Semi-inter quartile range

B. Quartile- deviation**C. Range**

D. None of these

**The frequency distribution mean > Median > Mode is called __________?**

A. Symmetrical

B. Negatively**C. +vely**

D. One

**The second moment about mean is _____?**

A. Mean

B. Variance**C. S.D.**

D. Mode

**suppose for 40 observation, the variance is 50. If all the observation are increased by 20, the variance of these increased observation will be_________?**

**A. 50**

B. 50/20

C. 70

D. 50-20=30

**Standard deviation is always calculated from _____________?**

**A. Mean**

B. Mode

C. Median

D. G.M.

**Mean deviation =______ S.D?**

A. 5/6**B. 4/5**

C. 2/3

D. 6/5

**The sum of the squares of deviations is the least when measured from____________?**

**A. A.M.**

B. Mode

C. Median

D. G.M.

**If Skewed distribution the three averages mean, median and mode are ________?**

A. Zero**B. Different**

C. Identical

D. None of these

**The sum of powers of deviation from mean is zero is called __________?**

A. Lack

B. Mean**C. Normal**

D. Skewed

**First moment about origin is always equal to _______________?**

A. variance

B. A.M.**C. Zero**

D. None of these

**The value of interval x ± S include _______________?**

A. 95.45%

B. 49.45%**C. 68.27%**

D. 99.73%

**The ________ in the distribution around which the observation to lie?**

A. Dispersion

B. Mean**C. Manner**

D. Central value

**The S.D. and variance are ____ of origine?**

A. Variance

B. Multiplied

C. Change**D. Independent**

#### Basics MCQs

**Mean deviation is always ________________?**

A. More than S.D.

B. Equal to S.D.**C. Less than S.D.**

D. Negative

**The correct variance is define as the __________________?**

A. S.D. of data h2/12

B. varies of data P2/6

C. M.D. of data h2/6**D. Variance of data h2/12**

**Mean deviation is equal to 4/5 of the _________ manipulation?**

A. Range

B. Quartile deviation**C. Standard deviation**

D. Variance

**In grouped data, the range is the difference between ________________?**

**A. Two extreme class boundaries**

B. Two extreme class limits

C. Two extreme class frequency

D. None of these

**Relative measure of skewness was introduced by _____________?**

A. Lack

B. Rowely**C. Karl Person**

D. Mode

**Absolute sum of deviations is minimum from _______________?**

A. S.D. of x

B. Coefficient of variance**C. Mean**

D. Normal

**If y = bx + a the mean deviation of y is_____________?**

A. var (x)

B. S.D. of y

C. S.D. of x**D. M.D.of x**

**The degree to which numerical data tend to spread about an average value is a________________?**

A. variance

B. Range

C. Minimum**D. Dispersion**

**Range of 5,5,5,5, is ________________?**

**A. 0**

B. 25

C. 5

D. None of these

**The A.M. is greater than mode is equal to ______________?**

**A. +vely**

B. Negatively

C. Skewness

D. zero

**In a symmetrical distribution mean, median and mode, _________________?**

A. Greater

B. Positive

C. Less than**D. Coincide**