Answer:
Major           [tex]X_i[/tex]       %
_________________________________________
Accounting        240        (240/800)*100=30%
Finance           160        (160/800)*100=20%
Management      320        (320/800)*100=40%
Marketing         80         (80/800)*100= 10%
_________________________________________
Total             800           100%
Step-by-step explanation:
For this case we can create the following table calculating the percent frequency as:
[tex] \% = \frac{X_i}{n}[/tex]
Where [tex]X_i[/tex] represent the number of students for the i category and n the total sample size.
Major           [tex]X_i[/tex]       %
_________________________________________
Accounting        240        (240/800)*100=30%
Finance           160        (160/800)*100=20%
Management      320        (320/800)*100=40%
Marketing         80         (80/800)*100= 10%
_________________________________________
Total             800           100%
The pie chart is on the figure attached. Â We use excel to create it.