Question

The stem-and-leaf plot shows the number of items randomly selected customers in a grocery store bought during its first hour in business.

http://static.k12.com/calms_media/media/328500_329000/328819/1/2dad501215e926d24cd0f5db450f452fd90aa5ef/MS_ALG_S2_07_04_quiz_Q3_question.gif

Which conjecture about the store's first hour is not supported by the data?

A.
The most common number of items bought was 15.

B.
The median number of items per customer was about 20.

C.
The store had at least 15 paying customers.

D.
Most customers bought more than 40 items.