Top 50+ Solved Statistics for Tourism Business MCQ Questions Answer
Q. If the mean ages of a group of boys is 20 years, then the mean of their ages after 2years is __________
a. 20
b. 22
c. 10
d. None of these
Q. The median of a frequency distribution is graphically with the help of ______________-
a. Graph
b. Ogive
c. Mode
d. None of these
Q. Find the value of x, if the mode of the data is 25. 15,20,25,18,14,15,25,15,18,16,20,25,20,x
a. 20
b. 10
c. 25
d. None of these
Q. The mode of a frequency distribution can be determined graphically by
a. Median
b. Ogive
c. Histogram
d. None of these
Q. If all the values of a series are multiplied by 5 what happens to the S.D
a. Decreasing by 5
b. Increasing by 5
c. Multiplied by 5
d. None of these
Q. The mean duration of the series : a,a+d,a+2d,………,a+2n from its mean is
a. n(n-1)
b. n(n-1)/2
c. n(n+1)/2
d. n(n+1)d/2n+1
Q. The varience of 15 observations is 4, if each observation is increased by 9, thevarience of the resulting observation is
a. 8
b. 16
c. 4
d. None of these