| Quadrat number (i) |
Number of organism (xi) |
- |
Deviations (di) |
Squared deviations (d2)i |
| 1 |
19 |
-18.3 |
0.7 |
0.49 |
| 2 |
61 |
-18.3 |
42.7 |
1823.29 |
| 3 |
38 |
-18.3 |
19.7 |
388.09 |
| 4 |
13 |
-18.3 |
-5.3 |
-28.09 |
| 5 |
10 |
-18.3 |
-8.3 |
-68.89 |
| 6 |
14 |
-18.3 |
-4.3 |
-18.49 |
| 7 |
4 |
-18.3 |
-14.3 |
-204.49 |
| 8 |
3 |
-18.3 |
-15.3 |
-234.09 |
| 9 |
3 |
-18.3 |
-15.3 |
-234.09 |
Total number of organisms
Σ (xi) = |
165 |
Sum of Squared Deviations
Σ (d2)i= |
1423.73 |
Mean
Σ (xi) / n = |
18.3 |
Sample Variance
s2 = Σ (d2)i / (n-1) = |
177.97 |
| |
Variance/Mean
(s2 /) = |
9.7 |
|
|
