If the arithmetic mean of 6 , 8 , 5 , 7 , x and 4 is 7 , then x is
12
6
8
4
Which of the following is true?
Mode = 3 median + 2 mean
Mode = 3 median - 2 mean
Mode = 2 median + 3 mode
Mode = 2 median - 3 mean
At what subject is the student sharp?
English
Mathematics
Science
History
The arithmetic mean of first n natural number
n/2
n/2 + 1
The mean of x , x + 3 , x + 6 , x + 9 and x + 12 is
x + 6
x + 3
x + 9
x + 12
The mode of a set of observations is the value which
occurs most frequently
is central
is between maximum and minimum
none of these
What are the average marks obtained by the students?
57
63
80
48
In which subject is the student poor?
The mean and median of a data are 14 and 15 respectively. The value of mode is
16
17
13
18
The weight (in kg) of 5 men are 62 , 65 , 69 , 66 and 61. The median is
45 kg
66 kg
65 kg
55 kg
