VVR Exam Tips – GS Test-1

………….. is the value of the middle most observation in data
a. Range
b. Class interval
c. Mean
d. None

The median of 9, 5, 7, 11, 13, 3 is …………..
a. 11
b. 9
c. 8
d. 1

If the arithmetic mean of 9 observations is 100 and that of 6 is 80 , then the combined mean of all the 15 observations will be…..
a. 12
b. 86
c. 84
d. 98

Which of the following same as representative of the whole class ?
a. Lower limit
b. Upper limit
c. Mid point
d. Length of the class

The mean of the five prime numbers is
a. 5.6
b. 8.6
c. 7.9
d. 10.9

Which of the following is not a measure of central tendency ?
a. Mean
b. Mode
c. Median
d. Range

In a frequency distribution the mid value of a class is 10 and the width of the class is 6. The lower limit of the class is ………..
a. 21
b. 19
c. 7
d. 5

We use ………….. to conclude which school has a better performance in an examination ;
a. Mean
b. Median
c. Mode
d. None

The median of the series is 10. Two additional observations 7 and 20 are added to series. The median of new series is …………….
a. 20
b. 11
c. 10
d. 31

The algebraic sum of all the deviations of all the observations from their mean is always …..
a. +ve
b. -ve
c. 0
d. equal to the number of observations