the mean and standard deviation would be the best measure of center and spread for which distribution below?

Brief Explanations:

The mean and standard - deviation are the best measures of center and spread for a symmetric distribution. The first two distributions (A and B) are skewed (A is left - skewed and B is right - skewed), while the third distribution (C) is symmetric. For skewed distributions, the median and inter - quartile range are more appropriate measures of center and spread.

Answer:

C.