Question # 1

A histogram is a set of adjacent:

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Squares

Rectangles

Circles

In a cumulative frequency polygon freqncies are plotted against.

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Midpoints

Upper class boundaries

Class limits

Frequency

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

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Average

Dispersion

Central tendency

Quartile

A cumulative frequency table is also called.....................

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Frequency distribution

Data

Less then cumulative frequency distribution

Histogram

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

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Average

Range

Quartiles

None of these

The positive square coot of mean of the squared deviations of x₁ (i = 1,2..........n) observation from their arithmetic mean is called.

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Harmonic mean

Range

S.D

Variance

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

median from the data 82,93,86,92 and 79 is.................

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82

86

92

93

The extent of variation between two extreme observations of a data set is measured by.......................

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Average

Range

Quartiles

Mode

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

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√6

36

3

6

A group frequency table is called.

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Data

Frequency distribution

Frequency polygon

None of these

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/-

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

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

Harmonic mean for 1,2,5,8,4 is....................

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6.08

5.08

7.08

4.08

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

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