Question # 1

A variable which takes measurable values is called a

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Constant

Discrete variable

Continuous variable

Qualitative variable

The parameters of hypergeometric distribution are:

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3

2

1

4

Bias is

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Cumulative

Decumulative

Decreasing

None of these

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

Binomial distribution has parameters:

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One

Two

Three

Four

For a given set of bivariate data if B_yx = 0.52 and b_xy = -1.02 then r is

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0.73

-0.73

0.00

1.00

E(X - μ)² =

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^Zero

S,D

Variance

Mean deviation

In a normal distribution S² = 5 them m₄ is

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25

75

0

If right tail is longer than the left tail,then distribution is called:

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Negatively skewed

Positively skewed

Symmetrical

None of these

For positively skewed binomial distribution

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p = 0

p < 0.5

p > 0.5

p = 0.5

The correlation coefficient would be

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1.95

-1.95

0.95

None of these

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