Question # 1

Normal distribution ranges from_______.

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1,2,3,............∞

-∞ to +∞

1,2,3,.........n

None of these

The normal distribution is a bell shaped_______ distribution.

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Discrete

Continuous

Symmetrical

Skewed

Second moment about mean is also called

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mean

variance

skewness

standard deviation

In normal distribution.

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Mean > median > mode

Mean = median = mode

Mean < median < mode

None of these

In case of normal distribution maximum value of ordinate is

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μ

Zero

μ - 2σ to=μ + 2σ contains approximately_______ area.

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75%

50%

95.45%

99.73%

In a normal distribution,_____= μ + 0.64745 σ

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Q₁

Q₃

μ

σ

The mean deviation (M.D) of a normal distribution is ________.

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4/5 σ

5/4 σ

2/3 σ

None of these

The point of inflection in normal distribution are _______.

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μ - σ, μ + σ

μ - σ, μ + 2σ

μ, σ

None of these

The moment coefficient of skewness is

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β₁

β₂

S_k

m₃

If X - N (50,25), then=σ = ________.

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3

5

25

50

The normal distribution is a _______.

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Positive

Negative

Discrete

Continuous

Points of inflexion of normal curve are at

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μ and σ

x=μ-σ and x=μ+σ

μ and 2σ

μ = o

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β₁

β₂

β₃

S_k

All odd ordered moments about mean are ______ in a normal distribution.

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Zero

Unity

Positive

Negative

In case of normal distribution the area to the left of the mean and area to the right of the mean is

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positive

negative

equal

unequal

The total area under the normal curve is________.

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Zero

Equal

Unity

True

The maximum ordinate of a normal curve is at X = ________.

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μ

σ

X̅

S.D

The normal distribution is represented as_______

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N (μ,σ²)

N (n,p)

N (0,σ²)

None of these

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Statistics Ics Part 2 Chapter 1 Online Test MCQs With Answers

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