Question # 1

Var (2x + 3) is:

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5 var (x)

4 Var (x)

4 Var (x) +3

4 Var (x) +9

The variance of 5,5,5,5,5,is

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0

25

5

125

Which of the following cannot be null hypothesis:

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qΣ q

q³ q

q = q

q¹ q

In Mesokurtic distribustion

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m₄ < 3s⁴

m₄ = 3s⁴

m₄ ¹ 3s⁴

m₄ > 3s⁴

The probability of rejecting H_o when it is true is called

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Confidence co-efficient

Level of confidence

Size of test

power of the test

The model letter of the word statistics is:

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S

T

S & T

I

Which is correct regarding the normal distribution

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b₁ = 3

b₂ = 0

Q.D = 0.7979 S

Q1 = m 0.6745S

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

The regression coefficient of x on y is:

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Cov (x,y) / Var (x)

Cov (x,y) / Var (y)

Cov (x,y) / S.D (x)

Cov (x,y) / S.D (y)

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

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4

2

1

8

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

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=0

<0

>0

¹ 0

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NAT I General Science Statistics MCQs With Answers

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