Which statement is true?
A)With nominal data we can find the mode.
B)Outliers distort the mean but not the standard deviation.
C)Business and economic data are rarely skewed to the right.
D)If we sample a normal population, the sample skewness coefficient is exactly 0.

Question

Quizplus · Accepted Answer

Nominal data is categorical data that can be counted and mode can be calculated as it is the most frequently occurring category.

Answer: B 
 Outliers can distort the mean as it is sensitive to extreme values. However, the standard deviation takes into account all values and is less affected by outliers.

Answer: None of them
 Skewness is a measure of asymmetry, and it is possible for business and economic data to be either skewed to the left or right. Additionally, if we sample a normal population, the sample skewness coefficient may not be exactly 0, as it depends on the sample size and the particular data.

Which Statement Is True