Find out the arithmetic mean from the following distribution by short cut method:
|
Items |
10-8 |
8-6 |
6 – 4 |
4 —2 |
2-0 |
|
Frequency |
10 |
8 |
6 |
4 |
2 |
|
Items |
X (MV) |
f |
(X-AM) d |
fd |
|
10-8 8-6 6-4 4-2 2-0 |
9 7 5 3 1 |
10 8 6 4 2 Σ f=30 |
4 2 0 -2 -4 |
40 16 0 -8 -8 Σ fd = 40 |
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
