Question # 1

Var (ax + b ) is:

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a² var (x) + b

a var (x) - a²

a² var (x)

Zero

The normal distribution is ..........distribution

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Positively skewed

Negatively skewed

Symmetrical

Meso kurtic

The systematic arrangement of data in the form of rows and columns is called

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Row and column cations

Data array

Classification

Tabulation

The graph of time series is called:

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Histogram

Ogive

Straight line

Historigram

The binomial distribution is symmetrical when

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p = q

p > q

p < q

None of these

If constants are added to or subtracted from the values of the variable the value of r is

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Negative

Positive

Zero

Remain unchanged

The lowest value of variance is:

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1

0

-2

None of them

If y = 5x + 10, then mean deviation of y is

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5 mean deviation (x)

25 mean deviation (x)

5 mean deviation (x) + 10

None of them

Variance of b,b,b,b is:

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b

4b

Zero

None of these

Accepting H_o when H_o is true is a:

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Type I error

Type II error

Correct decision

None of these

Bias is

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Cumulative

Decumulative

Decreasing

None of these

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NAT I General Science Statistics MCQs With Answers

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