Question # 1

the phase of statistics that is concerned with the procedures and methodology for obtaining valid conclusions is called.

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Descriptive staticis

Deductive statistics

Inferential statistics

Sample statistics

First moment about mean is always equal to

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One

Negative

Zero

Positive

Σ(Yi +a) = ?

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ΣY + na

aΣYi

aΣY

Σa

The 5^th decile is always equal to

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1^st quartile

2^nd quartile

3^rd quartile

Both (a) and (b)

The probability of getting one red ball from a bag constaining 4 red, 3 white and 3 black balls is.

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3/10

1/5

2/5

1/2

E(x) = Σxf(x) if it ________ absolutely.

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Equal

Converges

Discrete

None of these

For a symmetrical distribution.

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B1 = 0

B1 = 3

B2 = 3

B3 = 3

Random numbers are generated from the single digit numbers.

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{ 1,2,3,............. 10 }

{ 0, 1,2,.......................... 10}

{ 0,1,2.............}

{0,1,2,............. 9}

An index having a wide scope is called:

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Price index number

General purpose index number

Special purpose index number

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

If an index numebr calculation over 8 years with a base value of 100 gave an index for 1992 of 110, what would be the percentage relative for 1993.

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90.0

13.75

880

110

Third quartile Q₃ =

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P₃₃

D₃

Median

None of these

If the mean is less than mode, the distribution is.

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Positively skewed

Negatively skewed

Symmetrical

None of these

The mean of the absolute deviations of observations from mean, median or mode is called

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Quartile deviation

Absolute deviation

Mean

Mean deviation

There sets on a sofa can be occupied by four persons in.

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12 ways

7 ways

24 ways

None of these

How many methods are used for the collection of data.

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1

2

3

4

A fair aid is rolled, the sample space consists of:

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2 outcomes

6 outcomes

36 outcomes

None of these

The probability of an event connot be.

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= 0

> 0

=1

< 0

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Statistics Ics Part 1 Online Test MCQs With Answers

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