Scores on a math test from two different classes are compared using the following back-to-back stem-plot

Class AClass B

0|1 |4 8

7 |2|1 5 8

55 3 2|3|5 7 7 7

7722|4|05 7 7 8

53 110 00 |5|5799 99

5532 |6|05788 9 9

951|7|07899 9 9

92|8|55

|9|0

Compare the shapes for the classes A and B.

Question 21 options:

A: Approximately symmetric. B: Right skewed

Both Left skewed

A: Approximately symmetric. B: Left skewed