Every day, the Wilson Middle School cafeteria records how many lunches they sell

Lunch order Sandwich, Pasta, Pizza, Salad
Frequency 15, 30, 75, 30
Complete the relative frequency table for the data
lunch order Sandwich, Pasta, Pizza, Salad
Relative frequency __%, __%, __%, __%

1 answer

To calculate the relative frequencies, we need to divide the frequency of each lunch order by the total number of lunches sold.

Total lunches sold: 15 + 30 + 75 + 30 = 150

Relative frequency of Sandwich: 15/150 = 0.1 or 10%
Relative frequency of Pasta: 30/150 = 0.2 or 20%
Relative frequency of Pizza: 75/150 = 0.5 or 50%
Relative frequency of Salad: 30/150 = 0.2 or 20%

Therefore, the complete relative frequency table for the data is:
Sandwich: 10%
Pasta: 20%
Pizza: 50%
Salad: 20%