Ms. Kamenev and Ms. Denikin both teach a Russian History class at the local college. They compiled their students' scores on the course final exam and both made box-and-whisker plots of the data; Ms. Kamenev's is the top and Ms. Denikin's is the bottom. The department chair reviews the box-and-whisker plots and concludes that Ms. Kamenev's class must have performed better because the box and whisker both extend further to the right. Why is he wrong?