Top 80+ Solved Fundamentals of Business Statistics MCQ Questions Answer
Q. If the sum of squares of the deviations of 10 observations taken from mean 50 is 250,then C.V is
a. 10%
b. 12%
c. 20%
d. 15%
Q. If the relation between two variables x and y be 5x + 7y = 28 and median of y be 3, then the median of x is
a. 1.4
b. - 4.2
c. 3
d. 13/7
Q. The value of the correlation coefficient lies between
a. 0 and 1
b. - 1 and 1
c. -1 and 0
d. - 0.5 and 0.5
Q. For two mutually exclusive events A and B, if P(A) = 0.4 and P(B) = 0.3, then P (A or B) is
a. 0.6
b. 0.58
c. 0.7
d. 0.75
Q. If the events A and B are mutually exclusive then
a. P (A + B) = P (A) + P (B)
b. P (A + B) = P (A) – P (B)
c. P (A + B) = P (A) P (B)
d. P (A + B) = 0 18
Q. When Var (x) = 2.25, Var (y) = 1 and Cov (x, y) = 0.9, then correlation coefficient is
a. 0.45
b. 0.8
c. 0.6
d. 0.75