Please help
The frequency distribution shows the widths, in inches, of available cell phones at a technology
What is the mean of the frequency distribution? Round answers to tenths place, if answer is a whole number
than put a zero in the tenths place so it will be counted correct.
Cell Phone
Widths

Cell phone widths: 4, 5, 6, 7, 8
F 12, 1, 8, 18, 4