Question # 1

The maximum ordinance of the standard normal Curve is at Z = ______.

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1.96

2.33

1

0

P ( | Z | > a) =

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2ø(a) - 1

ø(a)

2 ø (-a)

1-ø(a)

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

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μ

σ

X̅

S.D

In case of symmetrical distribution

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μ₁ = μ₂ = μ₃ = μ₄

β₁ = β₂

P₁ < P₂

The moment coefficient of skewness is

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β₁

β₂

S_k

m₃

The shape of the normal distribution is like

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J.

L

bell

circle

Normal distribution is

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unimodal

bimodal

trimodal

multimodal

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

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2

4

3

5

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

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%

Total probability under the normal curve is

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1

0

-1

∞

For normal distribution mean always lies between.

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Median and mode

Median and Q₁

Median and Q₃

None of these

P(μ-2σ < X=< μ + 2σ)=

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0.6827

0.9545

0.9973

0.9827

In case of normal distribution maximum value of ordinate is

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μ

Zero

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β₁

β₂

β₃

S_k

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