The Information Below Compares the Final Exam Grades for 2

Multiple Choice

The information below compares the final exam grades for 2 biology classes:
$\begin{array}{|l|l|}\hline \text { Class } 1&\text { Class } 2\\\hline\\\hline \bar { X }&\bar { X }\\=80.2 & =81.3 \\\hline s=12.1 & s=6.7 \\\hline N=25 & N=23 \\\hline\end{array}$
What may we conclude? Class 1

A) is more homogeneous.
B) is more heterogeneous.
C) was a better class.
D) had no grade higher than a 90.