Consider data
50
51
52
53
What is the range?4 , -1 , -3 , 4 , 3 , -3 , 9 , -3
6
7
8
12
The mode of the 45 , 49 , 42 , 56 , 41 , 36 , 34 , 38 , 41 , 40 , 42 , 41 , 39 , 40 , 39 , 36 , 41 is
41
40
49
56
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
The middle most observation of a statistical data when they are arranged in ascending order is called
Range
Median
Mode
None of these
A.M for the following observation
32 , 267 , 321 , 157 , 33 , 254 , 166 , 132 , 289 , 349 is
267
321
157
200
The measure of central tendency which can't be found graphically is
Mean
The average age of 5 students is 60 years then their total age =
300
250
400
A data has 25 observations (arranged in descending order ) which observation represents the median?
12th
13th
14th
15th
The mean and median of a data are 14 and 15 respectively. The value of mode is
16
17
13
18
