As you increase the number of observations in a sample from 50 to 500, you are most likely to
A) leave the mean and standard deviation approximately unchanged.
B) increase the variability as the sample size increases.
C) decrease the variability as the sample size increases.
D) make the shape of the distribution more skewed.

Question

Quizplus · Accepted Answer

As the sample size increases, the mean and standard deviation will remain approximately unchanged. This is because the mean and standard deviation are measures of central tendency and dispersion, respectively, and they are not affected by the number of observations in a sample.

As You Increase the Number of Observations in a Sample