Question # 1

Types of dispersion are.........................

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4

5

6

8

The average pocket money of 30 students is Rs.20/- , The total amount in the class is:

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Rs.20/-

Rs.30/-

Rs.300/-

Rs.600/-

Median from the data 2.3,2.7,2.5,3.1 and 1.9 Is.........................

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2.3

2.5

2.7

2.9

The standard deviation is 6 then its variance is...........

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√6

36

3

6

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

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Average

Dispersion

Central tendency

In a set of data 63,65,66,67,69, median is:

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63

66

67

69

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

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Harmonic mean

Range

Standard deviation

The extent of variation between two extreme observations in a data is called.

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Average

Range

Quartiles

None of these

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

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Mode

Median

Harmonic mean

Mean

The spread or scatierness of observations in a data set is called.

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Average

Dispersion

Central tendency

Quartile

A Deviation is defined as a difference of any value of the variable from a:

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Constant

Histogram

Sum

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

The observation that divide a data set into four equal part, are called.

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Decites

Quartiles

Percentiles

Mode

If θ lies in 2nd (second) quadrant then sin θ and cosecθ are:

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negative

positive

zero

undefined

The most frequent occurring observation in a data set is called:

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Mode

Median

Harmonic mean

In a set of data, the difference between highest value and lowest value is called:

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Standard deriation

Range

Dispersion

All of these

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Mathematics 10th Class English Medium Unit 6 Online Test MCQs With Answers

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