Question # 1

The spread of observations in a data set is called.

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Average

Dispersion

Central tendency

Mean

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

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3

4

5

6

A grouped frequency table is also called.............

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Data

Frequency distribution

Frequency polygon

Histogram

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

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Constant

Histogram

Sum

The difference between upper limit of two consecutive classes is a frequency table is called:

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Class limit

Class interval

Class mark

All of these

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 measure which determines the middlemost observation in a data set is called...................

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Median

Mode

Mean

Variance

Rang =.................

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X_m+ X_o

X_m-X_o

X_m/X_o

X_o/X_m

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

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4

5

8

10

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

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

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Median

Mode

Mean

A histogram is a set of adjacent:

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Squares

Rectangles

Circles

The formula of area of circular sector is:

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l = rθ

r²θ

1/2r²θ

2r²θ

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

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Zero

One

Same

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

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

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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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