to get an accurate result, a sample size must be

group of answer choices

greater than the mean.

small enough to give an accurate estimate for two or more populations.

large enough to give an accurate estimate for a whole population.

equal to the mean.

How did alexander fleming’s research solve a societal problem? he developed ways to treat inherited diseases. he advocated for regular hand washing to kill germs. he discovered a new type of medicine that could treat infections. he discovered the cause of mad cow disease, an emerging disease.