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
The mean and median of a data are 14 and 15 respectively. The value of mode is
16
17
13
18
The mode of a set of observations is the value which
occurs most frequently
is central
is between maximum and minimum
none of these
The mean of 10 observations is 25. If one observation , namely 25 , is deleted , the new mean is
25
20
28
22
The mean of 994 , 996 , 998 , 1000 and 1002 is
992
1004
998
None of these
If the arithmetic mean of 6 , 8 , 5 , 7 , x and 4 is 7 , then x is
12
6
8
4
The arithmetic mean of first n natural number
n/2
n/2 + 1
In which subject is the student poor?
English
Mathematics
Science
History
Which of the following is not a measure of central tendency?
Median
Standard deviation
Mean
Mode
What are the average marks obtained by the students?
57
63
80
48
