A sample that is selected to resemble the entire population in its percentage of males and females, blacks and whites, and other factors is said to be a

A) random sample.
B) representative sample.
C) normal distribution.
D) control group.

A representative sample is one that accurately reflects the characteristics of the population it is being drawn from, including percentages of males and females, different ethnicities, and other factors. This ensures that the sample is not biased and is more likely to provide accurate results when making inferences about the larger population.