PLZ HURRY IT'S URGENT!
The data represent the number of phone calls received over an 8-day period.
Day 1 2 3 4 5 6 7 8
Calls Received 4 5 9 1 0 5 11 11

What is the mean number of phone calls received? A. 11 B. 5.75 C. 6.6 D. 5