Question # 1

Random numbers can be generated

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Manually

Mechanically

Botha a and b

None of these

⁴C₅= ....................

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5

1/5

0

None of these

The median for the data 2, 4, 6, 8, 10, 12 is

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5

8

7

10

The most central value of an arrayed data is.

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Mode

Median

Mean

Harmonic mean

The numebr of trial in bionomial distribution is.

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Not fixed

Fixed

Large

Small

Which is the most suitabel average in chain base method.

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Arithemetic mean

Median

Geometric mean

Weighted arithmetic mean

If the probability of success p = 0.4 for a parability Beronouli trial, the expression 7!/3!4! (0.4)2 (0.6)2 given the probility of getting.

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Exactly three sucoseeson in seven trials

Exactlyfour successin seven trials

Three or more successes in seven trials

Four or more successes in seven trials.

The probabilyt density function p (x) cannot exced.

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zero

One

Mean

Infinity

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

In which distribution the successive trails are with replacement.

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Hypergometric distribution

Bionomial distribution

Continuous distribution

None of these

The value of standard deviation changes by change of.

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Origin

Algebraic sign

Scale

None

The value of quartile deviation is always

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Positive

Zero

Negative

None of these

If the chance of occurance of two events are same then such events are called

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Independent events

Dependent events

Mutually exclusive events

Equally likely events

Classification of data by their time of occurrence is called.

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Temporal or choronologicla classification

Geographical classification

Quantitative classification

Qualitative classfication

The simple probability of occurrence of an event in called the.

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Joint probability

Conditional probability

Marginal probability

Subjective probability

Important bases of classification are.

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Two

Three

Four

More than four

In a binomial expreiment with three trials, the variable can take.

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2 Values

3 Values

4 Values

5 Values

For Laptokurtic distribution.

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b2 > 3

b2 < 3

b2 = 3

b1 > 3

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