Question # 1

The spread of observations in a data set is called.

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Average

Dispersion

Central tendency

Mean

The measures that are used to determine the degree or extent of variation in a data set are called measures of...........................

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Dispersion

Central tendency

Average

Quartile

The value obtained by reciprocating the mean of the reciprocal of x₁,x₂,x₃..............x₁₁ observation is called....................

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Geometric mean

Median

Harmonic mean

S.D

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

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4

5

6

8

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

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Average

Range

Quartiles

None of these

Mean is affected by change in_______________:

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Place

Scale

Rate

Origen

A grouped frequency table is also called:

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Data

Frequency distribution

Frequency Polygon

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

In a circle radius 10 what is the length of are intercepted by a central angle of 60°:

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π/3m

3/10πm

10π/3m

π/30m

The arrangement of data is necessary to find the value of.

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Mean

Median

Mode

Range

The circumference of a circle is divide into _____________ degrees:

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180°

270°

360°

30°

In a set of data 41,43,47,51,57,52 ,59 median is:

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51

47

52

None of these

a deviation is defined as a difference of any value of the variable from a......

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Constant

Histogram

sum

Frequency

The size of class interval (6-10) is.

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4

5

8

10

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/-

The measure of central tendency which is not affected by extreme values is called:

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Median

Arithmetic mean

Geometric mean

None of these

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

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