Question # 1

The numebr 143.9500 rounded off to nearest tenth is.

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143.9

144.0

143.0

144

When referring to a curve that tails off to the left end, you would callit.

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Symmetrical

Skewed to the right

Positively skewed

None of these

Which of the following is suitable for discrete probability distribution.

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Frequency polygon

Probability

Ogive

Histogram

If Mean = 25 and S² =25 the C.V is

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100%

25%

20%

None of these

If Laspeyres index = 104.5, Paasche's index = 107.9, then, Fisher's ideal index is equal to:

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100

104.1

106.2

110.2

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The Laspeyres index

The Paasches index

The value index

None of these

The smallest and the largest value of data are called.

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Range

Mid point

Extreme value

Arrayed value

If E a and impossible event, then P(E) is.

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0

0.5

1

Impossible

The sum of absolute deviations is a minimum if these deviations are taken from the

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Mean

Mode

Median

All of these

It is the reciprocal of the simple average of teh reciprocal of all the values.

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A.M

G.M

H.M

Mode

Which average cannot be computed if any value is less than zero.

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G.M

Median

Mode

A.M

The distribution is positively skewed if.

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Mean < Mode

Mean > Mode

Mean > Median

Both b and c

The variable that takes numerical value is called______ variable.

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Quantitative

Primary

Qualitative

None of these

Which is the most suitabel average in chain base method.

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Arithemetic mean

Median

Geometric mean

Weighted arithmetic mean

Classification of data by their time of occurrence is called.

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Temporal or choronologicla classification

Geographical classification

Quantitative classification

Qualitative classfication

For a certain distribution if Σ(x -10) = 5, Σ(x -20) =18 & Σ(x -15) = 0 then the value of Σ is.

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10

15

20

25

The number 5.56500 rounded off to nearest hundredth is.

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5.57

5.56

6.00

5.00

The main advantages of using the range as a measure of dispersion is that.

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It is easy to calculate

It is heavily influenced by extreme values.

It can change drastically from one data set to the next

It is determined by only two points in the data set

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