Question # 1

Two methods of data arrangement are

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Array and frequency distribution

Frequency distribution and histogram

Array and frequency polygon

Histogram and array

Statistical laws are true.

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On the average

Always

A and C

In the long run

Where 'a' is any constant.

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a₁ +a₂+ a₃ +................

na

n₁x₁ + a₂x₂ +..............

Σna

If Laspeyre's index numebr is 200, Paasche's index numebr is 200 , then Fisher's index numebr is.

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100

200

Zero

1000

The mean deviation is least if deviations are taken from

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A.M

Mode

G.M

Median

Is the tossing of two perfect coins the probability at least one head occur is.

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1/4

1

1/2

3/4

the collection of all possible outcome of a random experimnet is called.

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Sample point

Sure event

sample event

simple event

If x is a random variable with E(x) = 5 then E (3x - 2) =

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0

1

13

15

In measure of relative dispersion unit of measurement is.

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Changed

Vanishes

Does not vanishes

None of these

The expected value of a discrete random variable is.

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Always an integer

Always one of the values that the random variable can assume

An interal of values

None of these

The mean of a constant 'a' is

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0

a/2

a²

None of these

Random numbers can be generated mechanically by

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By use of digital computers

Probgrammable calculators

Ordinary calculators

Both a and b

In hyper geometric distribution n is.

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Changed

Zero

Fixed

variable

In fixed base method, the base period should be.

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Far away

Normal

Un reliable

Abnormal

An index that measures the change for a fixed time period is called.

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Chain base method

Fixed base method

Simple aggregative method

Cost of living method

P(A or B) = P (A∪B) = P(A) +P(B) then A and B are.

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Mutually exclusive

Independent events

Not mutually exclusive

Dependent

The probability of drawan any one spade card is.

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1/32

1/18

1/4

4/13

Which is the followig measures cannot be calculated for the numbers 5,8, 12,6, 9, 13, 10

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Median

Mean

Mode

None of these

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Statistics Ics Part 1 Online Test MCQs With Answers

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