1 |
The extent of variation between two extreme observations of a data set is measured by: |
Average
Range
Quartiles
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2 |
The measures that are used to determine the degree or extent of variation in a data set are called measures of: |
Dispersion
Central tendency
Average
|
3 |
The spread or scatterness of observations in a data set is called: |
Average
Dispersion
Central tendency
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4 |
The observations that divide a data set into four equal parts are called: |
Deciles
Quartlies
Percentiles
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5 |
The measure which determines the middle-most observation in a data set is called: |
Median
Mode
Mean
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6 |
The most frequent occurring observation in a data set is called: |
Mode
Median
Harmonic mean
|
7 |
The nth positive root of the product of the x1,x2,x3..................xn observations is called: |
Mode
Mean
Geometric mean
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8 |
Sum of the deviations of the variable "X" from its mean is always: |
Zero
One
Same
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9 |
Mean is affected by change in; |
Place
Scale
Rate
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10 |
Mean is affected by change in: |
Value
Ratio
Origin
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11 |
Mean of a variable with similar observations any constant k is: |
Negative
k itself
Zero
|
12 |
A data in the form of frequency distribution is called: |
Grouped data
Ungrouped data
Histogram
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13 |
A Deviation is defined as a difference of any value of the variable from a: |
Constant
Histogram
Sum
|
14 |
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: |
Number
Group
Denominator
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15 |
In a cumulative frequency Polygon frequencies are plotted against: |
Mid points
Upper class boundries
Class limits
|