Question # 1

Mean of a variable with similar observations say constant k is............

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Negative

K- itself

zero

one

Tan 90 =_________.

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√3/2

1/√3

0

undefined

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

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Constant

Historgram

Sum

Product

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

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Mean

Median

Mode

Range

1+ cot² θ = __________.

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tan²θ

cosec²θ

cot²

sec²θ

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

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

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X_m+ X_o

X_m-X_o

X_m/X_o

X_o/X_m

Mean is affected by change in;

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Place

Scale

Rate

If the rotation of the ray is clockwise, the angle is _____________ in measure:

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positive

negative

initial

terminal

Sec² θ -tan²θ =______________.

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sec²θ

cos²θ

1

sin²θ

A cumulative frequency table is also called:

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Frequency distribution

Data

Less than cumulative frequency distribution

The spread of observations in a data set is called.

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Average

Dispersion

Central tendency

Mean

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

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√6

36

3

6

A value best representing a set of data is called:

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Average

Variance

Standard deriviation

None of these

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

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Median

Mode

Mean

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