Which of the Following Is Not a Correct Statement

Multiple Choice

Which of the following is not a correct statement?

A) The coefficient of variation allows us to compare two sets of data based on different measurement units.
B) Chebyshev's theorem applies only to normal distributions.
C) Standardized values have no units of measure.
D) For distributions that are bell-shaped and symmetric,about 68% of the observations will fall within one standard deviation of the mean.
E) The vertical line within the box in the box-and-whisker plot represents the median.