Population Genetics And Evolution Lab Ap Biology Lab 8population Genetics And Evolution Lab Questions?

Ap biology lab 8population genetics and evolution lab questions? - population genetics and evolution lab

Using the results of the PTC taste among the class, how close they each phenotype frequencies (compared to non-examiners, auditors) to the north AMERICN in the population (70%), there is a variation observed accounted cfould Thi?
to .. Frequency of class to our auditors and examiners were 50% and
among the population in North America up to 70%

The answer is like .. 50% vs. 70%?
and the second part of the answer lies the real problem
I do not understand what they mean by change .......
please .. Help ...