Chart Plotting Exercise (3)

Now you need to calculate the mean (average) value for the sample (the collected values). The formula for this calculation is:

Mean (x-bar) = Sum x / n

where Sum x = total of all the sample values (883)

n = size of sample (5).

Do this, using the calculator if you wish, and enter the value (to the nearest whole number) into the correct box on the Chart below.

Date 01/04            
Time 01:00            
1 177            
2 176            
3 178            
4 177            
5 175            
Sum 883            
Mean            
Range