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1
What is the relation among mean, median and mode?
Mode = 3 median - 2 mean
Mode = 2 median - 3 mean
Mode = 3 mean - 2 median
Mode = 2 mean - 3 median
2
If the arithmetic mean of 6, 8, 5, 7, x and 4 is 7, then x is
12
6
8
4
3
The most frequently occurring observation is called ________________.
Mean
Median
Mode
Range
Median divides the total frequency into _________________ equal parts.
Four
Three
Two
Five
5
The arithmetic mean of five given numbers is 85. Their sum is _______________
425
85
between 85 and 425
More than 425
The arithmetic mean of first five natural numbers is _______________
7
The mean of first ten whole numbers is _____________
5.5
4.5
If each entry of a data is increased by 5, then the arithmetic mean ____________________
Remains the same
Increases by 5
Decreases by 5
None of the foregoing
9
The sum of 12 observations is 600, then the mean value is ________________.
47
42
50
45
10
20 years ago, when my parents got married, their average age was 23 years, now the average of my family, consisting of myself and my parents only is 35 years. My present age is
17 years
14 years
12 years
16 years
11
The mean of first 5 prime numbers is _________________.
5.8
6.8
5.6
6.5
The mean of 10 observation is 25. If one observation, namely 25, is deleted, the new mean is ______________
25
20
28
22
13
The mean of 994, 996, 998, 1000 and 1002 is ________________
992
1004
998
None
14
The mean of x, x + 3, x + 6, x + 9 and x + 12 is _______________
x + 6
x + 3
x + 9
x + 12
15
The mean of five numbers is 27. If one of the numbers is excluded the mean gets reduced by 2. The excluded number is ___________
35
27
40