The Lake Ontario Credit Union Selected a Sample of 40

Multiple Choice

The Lake Ontario Credit Union selected a sample of 40 student chequing accounts. Below is a chart of their end-of-the-month balances. The bank considers any student with an ending balance of $400 or more a "preferred customer". Estimate the percentage of preferred customers.

A) 50%
B) 60%
C) 33%
D) 67% 40%