WorksheetsLet's Work it Out
Total questions: 15
Worksheet time: 6mins
If the Mean is multiplied to Coefficient of Variation then the resulting value is classified as
coefficient of Deviation
Coefficient of Mean
Standard Deviation
Variance
If the Inter-Quartile Range is 24 then the Quartile Deviation is
(a)
The formula for Coefficient of Range is
H−LH+L
H+HL+L
L+LH+H
H+LH−L
The _______________ is the easiest measure of dispersion to calculate.
Range
Mean Deviation
Standard Deviation
Variance
While drawing Lorenz curve zero of X-axis and 100 on Y-axis are joined by a line. This line is known as
Line of Income
Line of Equal Distribution
Line of Unemployment
None
If mean and coefficient of variation of a set of data is 10 and 5, then S.D. is
(a)
Lorenz Curve : Used this technique to show
equality of wealth and income of a group of people
inequality of wealth and income of a group of people
unemployment of a group of people
employment of a group of people
Absolute measures of dispersion are
Expressed in terms of original unit of series
Expressed in ratios or percentage, also known as coefficients of dispersion.
None
Both
What would happen to the standard Deviation of a data set if we add 5 to every observation?
Increase by 5
Decrease by 5
Unchanged
Multiplied by 25
The symbol σ is used to represent
(a)
Match the following
a(ii), b(i),c(iii)
a(iii), b(ii),c(i)
a(i), b(iii),c(ii)
a(ii), b(iii),c(i)
In a normal data distribution with a symmetric bell curve, what is the skewness?
Positive
One
Zero
Negative
In the graph indicating a negative distribution and skewed bell curve, what do A, B and C represent, respectively?
Mode, Median, Mean
Mean, Median, Mode
Median, Mode, Mean
Mean, Mode, Median
In Measure of Skewness, the absolute measure of skewness is
Mean + Mode
Mean- Mode
Mean + Median
Mean- Media
If the standard deviation of a data set is 4, (a) is the variance?
