If in a data , 10 numbers are arranged in increasing order. If the 7th entry is increased by 4 , then the median increases by
0
4
6
5
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 of 10 observations is 25. If one observation , namely 25 , is deleted , the new mean is
25
20
28
22
The arithmetic mean of first ten natural numbers is
5.5
7.5
10
What are the average marks obtained by the students?
57
63
80
48
The measure of central tendency which can't be found graphically is
Mean
Median
Mode
None of these
In which subject is the student poor?
English
Mathematics
Science
History
The arithmetic mean of first n natural number
n/2
n/2 + 1
The mean and median of a data are 14 and 15 respectively. The value of mode is
16
17
13
18
The mean of 994 , 996 , 998 , 1000 and 1002 is
992
1004
998