The average age of 5 students is 60 years then their total age =
300
250
200
400
The mean and median of a data are 14 and 15 respectively. The value of mode is
16
17
13
18
Construction of a cumulative frequency table is useful in determining the
Mean
Median
Mode
All the above three measures
The arithmetic mean =
Sum of observations × Number of observations
Product of observations ÷ Number of observations
Sum of observations ÷ Number of observations
Sum of observation - Number of observations
Given the following set of data , what is the range?
[12 , 23 , 35 , 54 , 21 , 8 , 9 , 67 ]
55
59
8
56
A data has 25 observations (arranged in descending order ) which observation represents the median?
12th
13th
14th
15th
What is the range?4 , -1 , -3 , 4 , 3 , -3 , 9 , -3
6
7
12
The measure of central tendency which can't be found graphically is
None of these
Which of the following is not a measure of central tendency?
Standard deviation
A.M for the following observation
32 , 267 , 321 , 157 , 33 , 254 , 166 , 132 , 289 , 349 is
267
321
157