TO DETERMINE THE TOTAL MARKS
To determine the total marks , we will add up all the marks . This will be shown in the equation tab below
[tex]\begin{gathered} \sum_x=\text{ sum / addition of all marks = total marks} \\ \sum_x=94+83+75+52+71+68+75+49=567 \end{gathered}[/tex]Total marks = 567
Mean mark = Total marks / number of observations
[tex]\begin{gathered} \bar{x}=mean\text{ mark } \\ \bar{x}=\frac{\sum_^x}{n} \\ n=\text{ number of observations } \\ \bar{x}=\frac{567}{8}=70.875 \end{gathered}[/tex]
