Question # 1

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

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0

1

13

15

The probability of vowel letters form the words STATISTIC is.

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2/10

3/10

0

4/10

When calculating the average rate of debt growth for a company, the correct mean to use is.

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Arithmetic mean

Weigheted arthmetic

Geometric mean

None of these

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

Numebr of accidents recorded yesterday n Lahore is a.

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Discrete variable

Continuous variable

Qualitative variable

Constant

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

Which of the followingindices satisfies both the time reversal and factor reversal tests.

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Fisher's method

Paasche's method

Laspeyres method

None of these

If p = q = 1/2 then distribution is called.

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Postively

Skewed

Symmetrical

Negatively

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)

A random variable is also called.

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Chance variable

Stochastic variable

Discrete variable

Both A and B

For positive skewed distribution mean _________ Median __________ Mode.

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=

<

>

None of these

Which of the following is suitable for discrete probability distribution.

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Frequency polygon

Probability

Ogive

Histogram

In hyper geometric distribution n is.

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Changed

Zero

Fixed

variable

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

An Ogive is a

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Frequency curve

Frequency polygon

Cumulative frequency polygon

Frequency histogram

The repeated trials of binomial experiments are

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Dependent

Independent

Fixed

Variable

The sum of the squares of deviations is the least when measured from.

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A.M

Median

Mode

Both A and B

Circular test is satisfied by

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Laspeyres index

Paasche's index

Fisher's method

None of these

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