Question # 1

When three coins are tossed simulatneously, P(3 heads) is.

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3/8

1/2

1/8

1/4

If x is discrete random variable, then the function f (x) is.

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A probability function

A density function

A probability density function

A distribution function

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

Var (B/aX) =?

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1/aVar(X)

b²/a² Var(X)

b²/a Var(X)

None of these

The mena is affected by

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Change of origin

Scale of measurement

Both a and b

None of these

When two coins are tossed simulataneously the probability of at most one head is.

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1/2

1/4

3/4

None of these

Subset of sample space is called

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Event

Simple event

Compound event

Experiment

For a binomial probability distribution:

n = 10 & the probability of failure (q =0.6), then mean of the distribution is .

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0.6

6.0

10

4

Commodities subject to considerable price variation should best be measured by

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Quantity index

Price index

Value index

None of thes

When two coins are tossed simultaneously, P (one head ) is.

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1/2

1/4

3/4

1.0

The changes in whole sale or retail price are studies in

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Price index numbers

Volume index numbers

Aggregate index numbers

Chain index numbers

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 smallest and the largest value of data are called.

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Range

Mid point

Extreme value

Arrayed value

Which of the following statements is correct.

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Every symmetrical curve is measokurtic

Standard deviation is the mean squared deviations from the mean

The standard deviation of a constant is constant

Teh second moment about zero equals variance.

Which of the following is the first step in calculating the median of a data set.

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Average the middle two values of the data set.

Array the data

Determine the relative weights of the data values in tems of importance

None of these

probability distribution of a continuous random variable can be presented by.

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Formula

Curve

Tabular form

None of these

A relative frequency distribution presents frequencies in terms of

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Fractions

Whole numbers

Percentages

Both a and c but not b

The volume or quantity of goods are compared by

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Price index numbers

Relative index numbers

Volume index numbers

Paasche's index

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Statistics Ics Part 1 Online Test MCQs With Answers

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