Question # 1

Continuous data are differentiated from discrete data in that.

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Discrete data classes are represented by fractions

Continuous data classes may be represented by fractions

Continuous data take on only whole numbers

Discrete data can take on any real number

the base period can be described as a normal period if

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it is neither the peak nor the trough of a fluctuation

It is the most recent period for which we have data

It is the average of several consecutive pariods

None of these

The foot note are usually indicated by.

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(.............)

(***)

(------)

(____)

ⁿP_r can be solved by the formula

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Why are the outcomes of a coin tossing mutually exclusive.

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The outcome of any toss is not affected by teh outcome of those preceding it.

Both a head and a tail cannot turn up on any one toss

The probability of getting a head and the probability of getting a tail is the same.

All of these

Departure from symmetry is called.

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Kurtosis

Skewness

Dispersion

None of these

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)

If Q3 = 20 and Q1 = 10 the coefficient of quartile deviation is.

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3

1/3

2/3

1

When two dice are rolled, the numebr of possible sample points is.

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6

12

36

48

In fixed base method, the base period should be.

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Far away

Normal

Un reliable

Abnormal

The conditional probability P(A/B) is given by.

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(A∩B)/(B)

P(A∩B)/P(A)

P(A∩B)/P(B)

(A∩B)/P(B)

A lettter is chosen at random from the word STATITICS , The probability of getting a vowel is.

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1/5

3/10

1/2

2/5

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

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5

8

7

10

Commodities subject to considerable price variation should best be measured by

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Quantity index

Price index

Value index

None of thes

ⁿC_r is calculated by formula

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Two methods of data arrangement are

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Array and frequency distribution

Frequency distribution and histogram

Array and frequency polygon

Histogram and array

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

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Census

Population

Registration

Sample

The suitable average for shoe or collar size is.

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Geometric mean

Arithmetic mean

Mode

Median

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