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

Answer:

$Mean = 6.70$

Step-by-step explanation:

Given

See attachment for plot

Required

The mean of the plot

Mean is calculated as:

$Mean = \frac{\sum x}{n}$

Where

$n = 20$

Using the given key to read, the plot;

We have:

$Mean = \frac{3.00+3.25+4.25+5.00+..........+8.75+9.50}{20}$

$Mean = \frac{134.00}{20}$

$Mean = 6.70$