Question # 1

In a 2 x 2 contingency table degrees of freedom is:

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4

2

1

8

The index numbers calculated by considering the relative importance of variables are called:

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Un-weighted

Weighted

Simple

None

The lack of uniformity is called

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Skewness

Symmetry

Kurtosis

Dispersion

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

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=0

<0

>0

¹ 0

The range of constant "A" is equal to

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Zero

A

One

None of these

Variance is always calculated from:

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Mean

Median

Geometric mean

Mode

Total angle of a pie chart is

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100^o

180^o

300^o

360^o

A set of instruction that run the computer are:

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Hardware

Printers

Monitors

Software

A disadvantage of range is that it is based on

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Absolute deviation

Squared deviations

Two extreme observation

If any value is zero in the data then it is impossible to calculate:

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Arithmetic mean

Geometric mean

Mode

Median

Given var (x) = 3 and var (y) = 5.1 f x and y are independent variables then var (x- y)=

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-2

8

24

2

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NAT I General Science Statistics MCQs With Answers

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