A Study Was Conducted of the 12-Month Earnings Per Share

Multiple Choice

A study was conducted of the 12-month earnings per share for two categories of airline companies. $$\begin{array} { | c | c | } \hline \text { Large Airlines } & \text { Small Airlines } \\\hline \$ 4.36 & \$ 1.60 \\6.19 & - 1.98 \\- 0.42 & 1.03 \\3.73 & - 0.21 \\0.26 & - 1.15 \\6.27 & 4.19 \\& 0.59 \\& 1.52 \\& 1.97 \\& 4.57 \\& 0.05 \\\hline\end{array}$$ Based on the above data,which of the following statements is correct?

A) The large airlines have a coefficient of variation of 2.44 while the small airlines have a coefficient of variation of 3.64.
B) Because the large airlines have mean earnings per share of 3.40 and the small airlines have mean earnings per share of 1.11,the large airlines have the largest coefficient of variation.
C) Because the large airlines have mean earnings per share of 3.54 and the small airlines have mean earnings per share of 1.71,the large airlines have the largest coefficient of variation.
D) The large airlines have a coefficient of variation of 0.85 and the small airlines have a coefficient of variation of 2.72.
E) The large airlines have a coefficient of variation of 0.81 and the small airlines have a coefficient of variation of 1.17.