Question # 1

The moment coefficient of skewness is

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β₁

β₂

S_k

m₃

For normal distribution mean always lies between.

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Median and mode

Median and Q₁

Median and Q₃

None of these

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β₁

β₂

β₃

S_k

The probability density function has ------------------ value for every value of x.

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negative

positive

minimum

maximum

In normal distribution.

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Mean > median > mode

Mean = median = mode

Mean < median < mode

None of these

In case of symmetrical distribution

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μ₁ = μ₂ = μ₃ = μ₄

β₁ = β₂

P₁ < P₂

The shape of the normal distribution is like

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J.

L

bell

circle

In a normal distribution β₁ = 0 and β₂ = __________.

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2

4

3

5

The normal distribution is --------------------distribution.

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positively skewed

negatively skewed

symmetrical

peaked

The Quartile deviation (Q.D) of a normal distribution is_______.

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4/5 σ

5/4 σ

2/3 σ

None of these

Second moment about mean is also called

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mean

variance

skewness

standard deviation

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

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 total area under the normal curve is________.

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Zero

Equal

Unity

True

Total probability under the normal curve is

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1

0

-1

∞

Normal distribution ranges from_______.

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1,2,3,............∞

-∞ to +∞

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

None of these

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

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ICS Part 2 Statistics Chapter 10 Online Test MCQs With Answers

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