The mean and standard deviation are the preferred descriptive statistics when a frequency distribution is.
A)unimodal and symmetrical
B)bimodal and skewed
C)positively or negatively skewed
D)any of the above

Question

Quizplus · Accepted Answer

The mean and standard deviation are the best choice when the frequency distribution is unimodal (having one peak) and symmetrical because they accurately represent the central tendency and spread of the data. In cases of bimodality or skewness, median and quartiles may be better choices.

The Mean and Standard Deviation Are the Preferred Descriptive Statistics