Top 150+ Solved Business Statistics MCQ Questions Answer
Q. The sum of all the squared deviations is divided by the total number of observations to calculate
a. population deviation
b. population variance
c. sample deviation
d. sample variance
Q. For the recorded observation, the ratios measured by absolute variation are considered as
a. non-relative measures
b. relative measures
c. high uniform measures
d. low uniform measures
Q. If the arithmetic mean is multiplied to coefficient of variation then the resulting value isclassified as
a. coefficient of deviation
b. coefficient of mean
c. standard deviation
d. variance
Q. If mean absolute deviation of set of observations is 8.5 then value of quartile deviation is
a. 7.08
b. 9.08
c. 10.2
d. 11.2
Q. For a positively skewed distribution, mean is always:
a. Less than the median
b. Less than the mode
c. Greater than the mode
d. Difficult to tell
Q. If the sum of deviations from median is not zero, then a distribution will be:
a. Symmetrical
b. Skewed
c. Normal
d. All of the above
Q. The degree of peaked ness or flatness of a unimodel distribution is called:
a. Skewness
b. Symmetry
c. Dispersion
d. Kurtosis
Q. In a mesokurtic or normal distribution, µ4 = 243. The standard deviation is:
a. 81
b. 27
c. 9
d. 3
Q. The first three moments of a distribution about the mean are 1, 4 and 0. The distribution is:
a. Symmetrical
b. Skewed to the left
c. Skewed to the right
d. Normal
Q. The second and fourth moments about mean are 4 and 48 respectively, then the distribution is:
a. Leptokurtic
b. Platykurtic
c. Mesokurtic or normal
d. Positively skewed
Q. If the sum of squares of the rank differences of 10 pairs of values is 30, find the correlationcoefficient between them.
a. 0.75
b. 0.82
c. 0.90
d. 0.83