Answer:
[tex]Mean = 6.70[/tex]
Step-by-step explanation:
Given
See attachment for plot
Required
The mean of the plot
Mean is calculated as:
[tex]Mean = \frac{\sum x}{n}[/tex]
Where
[tex]n = 20[/tex]
Using the given key to read, the plot;
We have:
[tex]Mean = \frac{3.00+3.25+4.25+5.00+..........+8.75+9.50}{20}[/tex]
[tex]Mean = \frac{134.00}{20}[/tex]
[tex]Mean = 6.70[/tex]
