Question # 1

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

π/6 radians = ....................

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30^o

60^o

45^o

90^o

If B={1,2,100} and C = {2,100}, then B∩C = ________

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{1,2}

{1,2,100}

{2}

{2,1}

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

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Median

Mode

Mean

Variance

The nth positive root of the product of the x₁,x₂,x₃,..............x₁₁ observation is called.

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Mode

Mean

Geometric mean

Median

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

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Average

Range

Quartiles

Mode

The line that passes through centre and touches a circle at two points is called:

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Diameter

Radius

Arc

Corners

Two linear factors x²-15x+56 are:

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(x-7) and (x+8)

(x+7) and (x-8)

(x-7) and (x-8)

(x+7) and (x+8)

The formula of range is:

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X_max -X_min

X_max + X_min

groups/wight

none of these

If tan θ = √3 then θ =____________.

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30°

45°

60°

90°

The Range of R is, if R = {(1,3),(2,2),(3,1),(4,4)}.

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{1,2,4}

{3,2,4}

{1,2,3,4}

{1,3,4}

Formula to determine the size of a class is:

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X_max - X_min

X_max + X_min

Range/number of groups

number of groups/Range

If the two circles touches externally, then the distance between their centres is equal to the:

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Difference of their radii

Sum of their radii

Product of their radii

If A⊆ B then A∪ B is equal to

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A

B

∅

None of these

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

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82

86

92

93

Arithmetic mean of 34,34,34,34,34,34 is.

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0

341

6

170

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10th Class Mathematics English Medium KPK Boards Online MCQ's MCQs With Answers

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