Statistics MCQs

Page No. 10

As the normal distribution is symmetrical, its mean, median and mode are:____________?


aCoincide

✓


bNot equal

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cDifferent

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dnone

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View Answer Coincide

In a standard normal distribution z = 0 corresponds to _____________?


aS.D.

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bMean

✓


cM.D.

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dQ.D.

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View Answer Mean

N(µ, 2σ) means normally distribution with mean u and variance2σ then (3σ, 4) means _____________?


a46

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b76

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c36

✓


d47

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View Answer 36

The range of normal distribution lies between _________?


a -∞ to +∞

✓


b0 to ∞

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c -∞ to 0

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dNone of these

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View Answer -∞ to +∞

100% of values lies in the limits are equal to ______________?


a40 and 60

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b 20 and 70

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c20 and 30

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d20 and 80

✓


View Answer 20 and 80

Normal distribution has ___________?


a1 parameter

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b 2 parameter

✓


c3 parameter

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d4 parameter

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View Answer 2 parameter

The shape of normal distribution does depend upon _____ and variance?


ax

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bS/σ2

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cu

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d 2 µ2

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View Answer u

P(µ – σ≤x≤µ + σ)=_________?


a.6826

✓


b.6743

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c.6745

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d.2345

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View Answer .6826

For a normal distribution having µ = 241 and σ = 2 P (X≥235) is:_______?


a0.9986

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b0.5

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c0.475

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d0.235

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View Answer 0.9986

Normal distribution has ____shaped?


au-shaped

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bBell shaped

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cT-shaped

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dNormal shaped

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View Answer Bell shaped

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