Question # 1

Two attributes are independent if

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(AB) = (A)(B) / N

(AB) ¹ (A)(B) / N

(AB) > (A)(B) / N

(AB) < (A)(B) / N

The probability of type-1 error is denoted by

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a

1- a

b

1- b

Sum of deviation from Mean is always

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Negative

Positive

Zero

Fractional

The sum of deviations from arithmetic mean is:

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0

5

a

1

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

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a

1- a

b

1- b

If E (X) =4, then find arithmetic mean will be:

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4

8

0

1

A decimal number system has base

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2

8

10

16

Second moment about mean is

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Zero

One

Standard Deviation

Variance

For one-tailed test, when a = 0.05 then value of z is

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1.645

1.96

2.33

2.58

The hypergeometric distribution has parameters:

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2

3

4

None of these

Selection of cricket team by the selectors is a process of

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Random Sampling

Non-random sampling

Stratified sampling

Probability sampling

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