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  
Table 4: Shows the statistical analysis of distribution pattern of H. leucospilota.
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