Calculate weighted mean of the following data:
|
Marks |
81 |
76 |
74 |
58 |
70 |
73 |
|
Weight |
2 |
3 |
6 |
7 |
3 |
7 |
|
X |
W |
WX |
|
81 76 74 58 70 73 |
2 3 6 7 3 7 |
162 228 444 406 210 511 |
|
Σ W = 28 |
Σ WX= 1,961 |
The size of land holdings of 380 families in a village is given below. Find the median size of land holdings.
|
Size of Land Holdings (in acres) |
Number of families |
|
less than 100 100-200 200-300 300-400 400 and above |
40 89 148 64 39 |
What do you mean by 'Average'?
Pocket expenditures of 6 students are (Rs.) 6,12,18,24,30 and 36 respectively. Find out arithmetic mean.
Name various kinds of statistical averages?
Give formula of weighted averages.
Give formula of calculating arithmetic average of a continuous series.
What is arithmetic mean?
Define median.
Define mode.
Give formula for finding out median.
Mock Test Series
