Question # 1

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

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Average

Dispersion

Central tendency

During frequency distribution number of groups should be between........

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5 and 10

10 and 15

10 and 20

5 and 15

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

A frequency polygon is a many sides.

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Closed figure

Rectangle

Circle

Triangle

The reciprocal of Arithematic mean of reciprocal of values is called:

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Average

Harmonic mean

Geometric mean

None of these

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

A data in the form of frequency distribution is called..............

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Grouped data

Ungrouped data

Histogram

Dispersion

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 cumulative frequency Polygon frequencies are plotted against:

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Mid points

Upper class boundries

Class limits

The measure which determines the middle-most observation in a data set is called:

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Median

Mode

Mean

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

An ______________ is defined as the union of two non-col-linear rays with some common end point:

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angle

vertex

initial side

terminal

A part of the circumference of a circle is called a/an :

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angel

are

circumference

radian

Sum of the deviations of the variable "X" from its mean is always:

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Zero

One

Same

The nth root of product of 'n' number of values is called:

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Arithematic mean

Geometric mean

Harmonic mean

Standard deriviation

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

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2

4

8

3

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10th Class Mathematics Chapter 6 Basic Statistics English Medium KPK Boards Online MCQ's MCQs With Answers

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