Sampling Erros
Define random sampling?
a sampling method that allows for the randomization of small amount of data.
what are motile organisms?
organisms that move from place to place.
define sampling error ?
Difference between a sample statistic and the equivalent value for the full population .
what are sessile organisms ? and give one ex .
organisms with a fixed position / don´t move
describe the purpose for random sampling ?
Random sampling insures every member of population has an equal chance of selection .
what is the difference between sessile & motile organisms sampling method?
Sessile= Quadat sampling
-habitat is marked
Motile= CMRR method / Lincoln Index
-individuals are captured and marked
what reduces sampling error ?
random sampling
why is random assignment in sampling procedure important?
shows an unbiased representation of a group.
What is the purpose of sampling a population and not count every individual?
not possible to determine exact size, has to be estimated.