Question # 1

Given N = 5 and n = 3 in simple random sampling with replacement how many possible samples are there?

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10

125

60

15

Var (ax + b ) is:

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a² var (x) + b

a var (x) - a²

a² var (x)

Zero

The formula used to estimate a parameter is called:

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Estimate

Estimation

Bais

Estimator

The best fitting trend is one for which the sum of squares of errors is:

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Zero

Least

Maximum

Negative

The probability of type-1 error is denoted by

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a

1- a

b

1- b

How many types of dispersion

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2

3

4

None of these

For positively skewed binomial distribution

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p = 0

p < 0.5

p > 0.5

p = 0.5

For a symmetrical distribution:

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b₁ = 0

b₁ = 3

b₂ = 3

b₃ = 3

If 1- a = 0.90, then value of Z_a/2 is

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1.645

1.96

2.33

2.575

Basic year weighted index numbers are:

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Laspeyre's

Paasche's

Fisher's

None of these

In random sampling the probability of selecting and item from the population is

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Un-known

Known

Undecided

None

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NAT I General Science Statistics MCQs With Answers

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