The daily sale of Kerosene (in litres ) in a ration shop for six days is as follows :
75 , 120 , 12 , 50 , 70.5 and 140.5. The average daily sale is
150
10
142
78
The arithmetic mean of first n natural number
n/2
n/2 + 1
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
At what subject is the student sharp?
English
Mathematics
Science
History
The mode of a set of observations is the value which
occurs most frequently
is central
is between maximum and minimum
none of these
In which subject is the student poor?
The measure of central tendency which can't be found graphically is
Mean
Median
Mode
None of these
The mean and median of a data are 14 and 15 respectively. The value of mode is
16
17
13
18
Which of the following is not a measure of central tendency?
Standard deviation
The mean of 10 observations is 25. If one observation , namely 25 , is deleted , the new mean is
25
20
28
22
