Question # 1

The expected value of a discrete random variable is.

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Always an integer

Always one of the values that the random variable can assume

An interal of values

None of these

Mid poitn of the group. 5.5 - 7. 5 in

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6

6.5

7

7.5

Which of the following methods uses quantities consumed in the base period when computing a weighted index.

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Laspeyree'method

Paasche's method

Fisher's method

None of these

The purpose of the sample is to draw inference about:

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statistic

Population

Parameter

Primary

The life time of fans, data is.

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Discrete

Continuous

Unchanged

Qualitative

Sample mean is an

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Estimated statistic

Updating statistic

Biased statistic

Unbiased statistic

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

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4

6

24

12

First moment about mean is always equal to.

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Standard deviation

Zero

1

Variance

A hypergometric random variable is a (an)

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Independent variable

Continuous random variable

Discrete random variable

None of these

If the random variable x denotes the number of heads of when three distinct coins are tossed k the X assumes values.

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0,1,2,3

1,3,3,1

1,2,3

1,1,1,1

A collection of some of the elements from a group is called.

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Census

Population

Registration

Sample

The hypergeometric distribution is used when trials are

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Dependent

Independent

Equally likely

Mutually exclusive

"P_r can be solved by the formula.

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N!/ r!(n-r)!

(n-r)!/r!

n!(n-r!)

n!(n-r)!/r!

The binomial distribution deal with:

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Discrete variable

Continuous variable

None of these

If data is arranged in increasing order of magnitude that data is scald to be arranged in:

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Descending order

Ascending order

Statistic order

Both A and B

Which ofthe following methods uses quantities consumed in the current period when computing a weighted index.

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Laspeyres method

Marshall -Edge worth's methods

Peasche's method

Fisher's method

The probability distribution of discrete random variable is called is

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Frequency distribution

Probability distribution

Probability mass function

Both (a) and (b)

The mode of letters in the word STATISTICS is:

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S

T

I

S & T

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Statistics Ics Part 1 Online Test MCQs With Answers

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