Question

Use the following table to answer each question. Elizabeth wants to change her cell phone plans. Before contacting the service provider, she makes a table of her cell phone minutes used over the course of a week.

Answer 1

The mean is mathematically given as given as

Mean = 43 minutes

Mean = $47

This is further explained below.

What is the mean?

Generally, Cell phone usage Mon to Sun = 38, 62, 40, 10, 30, 55, 65

Mean = (38+62+40+10+30+ 55 + 65)/7

Mean = 43 minutes rounded

Water bills  Mean from Jan to Dec =

40+42+40+38+48+50+58+62+56+46+44+44=568

Mean = (568)/12

Mean = $47 rounded

In conclusion, the mean is

Mean = $47

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