Basic Numerical Skills

`Q 1. Kelley’s co-efficient of Skewness is based on`

(A) Mean
(B) Quartiles
(C) Percentiles
(D) None of these

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`Q 2. Index number for the base period is always taken as`

(A) 200
(B) 50
(C) 1
(D) 100

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`Q 3. Mean of 3 items is 30 two of them are 20 and 30. What is the other?`

(A) 40
(B) 30
(C) 20
(D) 60

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`Q 4. ……………… is called positional measure`

(A) Mean
(B) Median
(C) Mode
(D) Harmonic Mean

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`Q 5. The standard deviation of 10,16,10,16,10,10,16,16`

(A) 4
(B) 6
(C) 3
(D) 0

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`Q 6. Measures of central tendency are called averages of the ……….. order`

(A) First
(B) Second
(C) Third
(D) None

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`Q 7. Co-efficient of standard deviation is`

(A) SD / Mediam
(B) SD / Mean
(C) SD/ Mode
(D) AM / SD

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`Q 8. When mean is less than median and median is less than mode the distribution is called ……………`

(A) Symmetric
(B) Negatively skewed
(C) Positively skewed
(D) None

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`Q 9. …………. Index is based on the price and quantities of both base year and current year`

(A) Paasche’s
(B) Laspeyer’s
(C) Fishers
(D) None of these

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`Q 10. The best average for constructing an Index number is`

(A) Arithmetic mean
(B) Harmonic mean
(C) Geometric mean
(D) Weighted mean

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