Question # 1

The parameters of hypergeometric distribution are:

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n,k & p

n, k & q

n, p & q

n, k & N

The most central value of an arrayed data is.

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Mode

Median

Mean

Harmonic mean

The probability of a 'Jack' Card form 52 playing card is:

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1/52

4/52

13/52

26/52

If x and y are independent random variables, then E(xy)

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E(xy)

xE(y)

E(x)

E(x)E(y)

Which one of the following is not effected by extreme values

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mean

median

mode

both (a) and (b)

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

The hyper-geometric distribution has........... parameters.

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1

2

3

4

Numebr of accidents recorded yesterday n Lahore is a.

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Discrete variable

Continuous variable

Qualitative variable

Constant

For Laptokurtic distribution.

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b2 > 3

b2 < 3

b2 = 3

b1 > 3

The hypergeometric distribution has -------------- parameters

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One

Two

Three

Four

When the base year values are used as weights, the weighted average of relatives price index is the same as.

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the paache's index

The laspeyres index

The unweighted average of relatives price index

None of these

The probability of continuous random variable at x = a is__________.

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One

Zero

Between

More then one

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

a measure of the chance that an uncertain event will occur.

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An experiment

An event

A probability

A trail

The properties of discrete probability distribution are:

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Σp (x) = 1 and Σx. (x) = 1

ΣP (x)= 1 and Σx. P

ΣP(x) = 1 and 0 < P(x) ≤ 1

All of these above

The main advantages of using the range as a measure of dispersion is that.

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It is easy to calculate

It is heavily influenced by extreme values.

It can change drastically from one data set to the next

It is determined by only two points in the data set

Histogramis a graph of.

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Qualitative data

Time sereis

Ogive

Frequency distribution

Which of the following indices satisfies both the time reversal and factor reveral tests.

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Laspeyres' index

Fisher's index

Paasche's index

Marshall -edge worth

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