Question # 1

How many types of dispersion

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2

3

4

None of these

A decimal number system has base

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2

8

10

16

The probability that the confidence interval does not contain the parameter is denoted by:

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a

1- a

b

1- b

Which index number may be weighted?

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Simple

Compositive

Both a and b

Fisher

The sum of the squares of deviation is least form:

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Mean

Mode

Median

Harmonic mean

Probability distribution of a statistic is called

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Sampling error

Sampling distribution

Standard error

Parameter

The lowest value of variance is:

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1

0

-2

None of them

For the standardized normal variate P(0Σ z Σ1) =...............

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0.34135

0.47725

0.49867

0.33725

If b_yx < 0 and b_xy < 0 then "r"

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=0

<0

>0

¹ 0

In chain base method,the base period is:

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Fixed

Changed

Constant

None of these

In symmetrical distribution if Q₁ = 4, Q₃ = 12 then median is

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4

16

8

Zero

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