- Sample has to be random otherwise bias is introduced and results will not be accurate.
- It is a representative so it has to be large enough so our estimate is as accurate as possible
After you have randomly chose the square and counted species then repeat and randomly chose ten more coordinates.
After you have got all your data put it into a table and calculate the mean.
to get as close to accurate representative as possible the bigger the squares the better and try do 10 quadratics or 10% of actual area
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