Question # 1

A cumulative frequency table is also called:

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Frequency distribution

Data

Less than cumulative frequency distribution

The mean of the squared deviations of x_i (i = 1, 2, -----------------,n) observations form their arithmetic mean is called:

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Variance

Standard deviation

Range

In the given set of data 5,7,7,5,3,7,2,8,2 mode is:

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9

5

2

7

A grouped frequency table is also called:

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Data

Frequency distribution

Frequency Polygon

In a set of observation. 5,5,7,9,9,9,9,11,11,11,11,12,12 the mode is:

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9

11

Both 9 and 11

None of these

Variance is denoted by...........................

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V

S

S²

X

Geometric mean of 2,4,8 is......................

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2

4

8

3

The sum of 30 observations is 1500. Its average will be:

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1500

150

15

None of these

A data in the form of frequency distribution is called:

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Grouped data

Ungrouped data

Histogram

On the basic of types of variable of data, the types of frequency distribution are.

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2

3

4

5

The most frequently occurring observation in a data set is called.

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Mode

Median

Harmonic mean

Mean

The spread or scatterness of observations in a data set is called:

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Average

Dispersion

Central tendency

Mode from the following data ,4.4,5.5,6.6,7.7,8.8,6.5,6.5,7 is..........

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4

5

5.6

5.7

Types of measures of central tendency are................

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3

4

5

6

In the given set of data 5,5,5,5,5,5,5 the standard deriation is:

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5

0

7

None of these

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