The distribution, for which the coefficient of variation is less, is _________ consistent.
For determination of mode, the class intervals should be
For the values of a variable 5, 2, 8, 3, 7, 4 the median is
If the class interval is openend then it is difficult to find
The class having maximum frequency is called
Mode is
The sum of the squares of the deviations of the variable is __________ when taken about A.M
The abscissa of the maximum frequency in the frequency curve is the
The A.M of 1, 3, 5, 6, x, 10 is 6. The value of x is
(1+3+5+6+x+10)/6 = 6
(25+x)/6 = 6
x = 3625
x = 11
If the A.M of any distribution be 25 & one term is 18. Then the deviation of 18 from A.M is
For finding A.M in Step – deviation method, the class intervals should be of
(n+1)/2 th term is median if n is
The value of a variate that occur most often is called
The G.M of 2 & 8 is
First Quartile lies in the class interval of the
Which one is true –
Semiquartile range is onefourth of the range in a normal symmetrical distribution.
If each item is reduced by 15 A.M is
If the variables are increased or decreased by the same proportion, the standard deviation changes by
If the variables are increased or decreased by the same amount the standard deviation is
Coefficient of Quartile Deviation is equal to
If each item is reduced by 20, the standard deviation
The mean of the 1st n natural no. is
Coefficient of variation is a relative measure of
Coefficient of variation is equal to
Quartile deviation is based on the
Relative measures of dispersion make deviations in similar units comparable.
S.D is less than Mean deviation
If each item is reduced by 10, the range is
Coefficient of variation is independent of the unit of measurement.
Whole frequency table is needed for the calculation of
Mean is an absolute measure & Standard deviation is based upon it. Therefore standard deviation is a relative measure.
For a moderately nonsymmetrical distribution, Quartile deviation = Standard deviation /3
If all the values are multiplies by the same quantity, the __________ & _________ also would be multiple of the same quantity.
For a moderately nonsymmetrical distribution, Probable error of standard deviation =Standard deviation/3
When all the values are equal then variance & standard deviation would be
Coefficient of standard deviation is
If the same amount is added to or subtracted from all the values, the mean shall increase or decrease by the __________ amount
In _________ range has the greatest use.
For a moderately nonsymmetrical distribution, Mean deviation = 4/5 of standard deviation
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