ELEMENTS OF STATISTICS, SET 3

ELEMENTS OF STATISTICS

Q.1

If all the variate values are negative the standard deviation will be.

Ans. 

Positive.

Q.2

The suitable distribution used for number of events in other specified interval such as to distance, area, volume, is

Ans. 

Poisson distribution.

Q.3

The standard deviation for the values 4, 5, 6, 7, 8 will be.

Ans. 

(2)½.

Q.4

Coefficient of variation is calculated by the formula.

Ans. 

C.V. = S.D. (σ) / Mean (μ) x 100.

Q.5

The degree of freedom for error in R.B. design with 10 treatments and 4 replication will be.

Ans. 

27.

Q.6

The value of standard deviation may vary between.

Ans. 

0 to ∞.

Q.7

Average rate of depreciation would be obtained by.

Ans. 

Geometric Mean.

Q.8

When two variables move in the same direction correlation is said to be.

Ans. 

Positive.

Q.9

When two variables move in the opposite direction correlation is said to be.

Ans. 

Negative.

Q.10

Correlation is used to analysis the behaviour of.

Ans. 

More than one (i.e.≥2).

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