Question # 1

If X and Y are random varaibes, than E ( X - Y) is equal to.

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E(X) + E (Y)

E(X) - E(Y)

X - E (Y)

E(X) - Y

When a graph is made to show the total and part of the data, we draw.

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Simple bar chart

Multiple bar chart

Component barchart

None of these

If a distribution has two modes, than it is called.

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Uni- model

Bi - mdoel

Tri-model

Multi model

Which is appropriate averege for finding the average speed of a journey.

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Mean

Geometric mean

Harmonic mean

Weighted mean

A hypergometric random variable is a (an)

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Independent variable

Continuous random variable

Discrete random variable

None of these

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4/10

2/10

1/10

0

Events with equal probabilities are called.

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Mutually exclusive events

Exhauative events

Eqauily likely events

Simple events

If a player well shuffles the pack of 52 playing card, then the probability of a black card form 52 playing cards is:

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1/52

13/52

26/52

4/52

the term 'event' is used for.

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Time

Subaet of the sample space

Total number of outcomes

Probability

Which of the following is true for binomial distribution

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Mean > variance

Mean < variance

Mean = variance

Mean + standard deviation

The sum of squared deviation is minimum, when deviation are taken form

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Mean

Median

Mode

None of these

If the third moment about mean is zero ( m3 = 0) , then the distribution is.

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Mesokurtic

Positively skewed

Symmetrical

Negatively skewed

The repeated trials of binomial experiments are

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Dependent

Independent

Fixed

Variable

The probability of vowel letters form the words STATISTIC is.

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2/10

3/10

0

4/10

Binomial distribution has parameter

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One

Two

Three

Four

A copntinuous probability distribution may be represented by.

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A table

a graph

A mathmethical equation

Botha b and c

In which distribution the successive trials are without replacement.

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Hypergometric distribution

Bionomial dristribution

Continuous distribution

None of these

Weight of whole earth is.

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Discrete variables

Qualitative variable

Constant

Continuous variable

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Statistics Ics Part 1 Online Test MCQs With Answers

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