Question # 1

In class (30-39), lower class limit is....

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39

9

30

34.5

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

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Zero

One

Same

Arithmetic mean is a measure that determines a value of the variable under study by dividing the sum of all values of the variable by their:

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Number

Group

Denominator

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

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X_m+ X_o

X_m-X_o

X_m/X_o

X_o/X_m

In a cumulative frequency polygon freqncies are plotted against.

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Midpoints

Upper class boundaries

Class limits

Frequency

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

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Median

Mode

Mean

Variance

D° M' S"form of 45.36° is:

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45° 21" 36'

45' 21'° 36"

45° 21' 36''

45'' 21' 36°

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

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Mode

Median

Harmonic mean

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

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

Standard deviation is denoted by

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x

S

S²

X²

A cumulative frequency table is called.

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Frequency distribution

Data

Less then frequency distribution

None of these

The class having maximum frequency is called................. class.

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Model

Median

Lower

Upper

A frequency polygon is a many sides.

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Closed figure

Rectangle

Circle

Triangle

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

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1500

150

15

None of these

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

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

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