Question # 1

The variance of 5,5,5,5,5 is.

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0

25

5

125

A relative frequency distribution presents frequencies in terms of

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Fractions

Whole numbers

Percentages

Both a and c but not b

The weights used in a quantity index are

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Percentage of total quantity

Prices

Average of quantities

None of these

There sets on a sofa can be occupied by four persons in.

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12 ways

7 ways

24 ways

None of these

If b₂ = 3, then the distribution is:

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leptokurtic

Platykurtic

Normal

None of these

As the numebr of observations and classes increase, the shape of a frequency polygon.

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Tends to become increasingly asmooth

Tends to become jagged

stays the same

Varies if data become more reliable

Which is a poor measure of dispersion in open-end distribution.

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Range

Standard deviation

Variance

A.M

Which of the following statements is true.

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As a rule statisticians genereally use between 6 and 15 classes.

As a rule, statisticians regards a frequency distribution incomplete if it has fewer than 20 classes.

Classes describe only one characteristics the data ebign organized

None of these

The probability of getting two red balls with replacement from a bag containing 4 red, 3 white and 3 black balls is.

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4/25

1/25

9/100

2/25

Which one is not an example of random experiments.

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A coin is tossed and the outcome is either a head or a tail

A six sided aid is rolled

All medical insurance clams received by a company in a given year.

Some one of person will be admitted to a hospital emergency room during any hour.

If A∪B = S then A and B are __________ events.

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Equally likely

Exhaustive

Compound

None of these

The mean of a binomial distribution depends on.

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Parability of success

Parababilyt of failure

Number of trials

Both a and c

Which is the most useful average in chain base method

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Arithmetic mean

Median

Geometric mean

Weighted arithmetic mean

The Area of trapezoid is equal to:

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sum of paralled sides x base

sum of paralled sides x base/2

2 x base x sum of paralled side

Sum of paralled sides x base/4

M.D. of the values 4,4,4,4 is

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0

4

8

12

The range of the scores 19,3,140,25,95,is

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140

137

143

3

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

For an open and distribution, without assuming certain limits it is not possible to find:

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A.M

G.M

Median

Boat A and B

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Statistics Ics Part 1 Online Test MCQs With Answers

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