An effective way to make sure that a sample is representative is to
A)use random selection.
B)calculate the correlation coefficient.
C)make sure that the standard deviation is low.
D)use a scatter diagram.

Question

Quizplus · Accepted Answer

Random selection helps to ensure that all individuals in the population have an equal chance of being included in the sample, making it more likely that the sample will be representative of the population as a whole. Calculating the correlation coefficient, measuring standard deviation, or using scatter diagrams do not directly address the issue of sample representativeness.

An Effective Way to Make Sure That a Sample Is