Question

sample not completely reliable 4.2.1(b)

Accepted Answer

due to;- smapling bias (selection process biased e.g sampling on area that looks to have more organisms, reduced by using random sampling)- chance (organsims selected may not be representative of whole pop e.g sampling tallest organims, so assuming all are that tall, minimised using large sample size)

Front	sample not completely reliable 4.2.1(b)
Back	due to; - smapling bias (selection process biased e.g sampling on area that looks to have more organisms, reduced by using random sampling) - chance (organsims selected may not be representative of whole pop e.g sampling tallest organims, so assuming all are that tall, minimised using large sample size)

Sample E.G Sampling Completely Reliable 4.2.1(b Due Smapling