Question # 1

The ratio of A to B is the fraction:

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B /A + B

A / B

^{B / A}

A / A + B

Binomial distribution is positively skewed

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P < 1/2

P > 1/2

P = 1/2

P < q < ¹/₂

Which one of the following is not effected by extreme values

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mean

median

mode

both (a) and (b)

The parameters of binomial distribution one

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p and q

q and n

n and p

n,p,q

How many basic types of index numbers.

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2

3

4

5

In binomial distribution, the random variable has a range:

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0,1,2...................n

0,1,2,......+∞

-∞ to +∞

∞ to +0

For two independent random variables, Var(x) = 14 and Var(Y ) = 5, then var (X-y) is equal to.

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9

70

19

None of these

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

Which is the suitable average for calculting average percent increase in population.

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Median

Geometric mean

Mean

Harmonic mean

The data which have already been collected by some one are called.

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Secondary data

Primary data

Arrayed data

None of these

When we draw the sample with replacement (the first sample is replaced before the next draw), the probability distribution to be used is:

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Binomial

Hypergeometric

Both Binomial & hypergeometric

None of these

A non-orderly arrangement of things is called

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Combination

Permutation

Collection

Sample Space

Probability of an event cannot be

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Negative

Positive

Zero

One

If the value of a variable are -2, -3, -5, -10 then range is.

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-12

8

-8

0

A quantity calculated from a population is called.

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Frequency

Statitics

Parameter

Sample

The numebr of ways in whihc four books can be arranged on a shelf is.

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4

6

24

12

Where 'a' is any constant.

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a₁ +a₂+ a₃ +................

na

n₁x₁ + a₂x₂ +..............

Σna

Is a symmetrical distribution.

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Q1 = Q3

P25 = P50 = P75

A.M = G.M = H.M

A.M = Med = Mode

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