Question

A track coach records the number of miles that he ran per day over the month. The stem-and-leaf plot below summarizes this data.

Answer 1

`Mean = 6.70`

Explanation:

Given

See attachment for plot

Required

The mean of the plot

Mean is calculated as:

`Mean = (\sum x)/(n)`

Where

`n = 20`

Using the given key to read, the plot;

We have:

`Mean = (3.00+3.25+4.25+5.00+..........+8.75+9.50)/(20)`

`Mean = (134.00)/(20)`

`Mean = 6.70`