To get ready for the daily lunch rush, a deli prepared 30 salads topped with croutons. The manager randomly selected 5 of the salads and counted the number of croutons on each salad. The results are shown in the table below.
Sample of Salads
Salad Number of
Croutons
A 11
B 16
C 11
D 12
E 15
Assuming the sample was representative of all the prepared salads, what was the mean number of croutons per salad?
To find the mean number of croutons per salad, we need to add up the number of croutons and divide by the total number of salads.
Adding up the number of croutons in the sample:
11 + 16 + 11 + 12 + 15 = 65
Dividing by the total number of salads:
65 / 5 = 13
Therefore, the mean number of croutons per salad is 13.
To find the mean number of croutons per salad, you need to calculate the average of the number of croutons for the sample salads.
First, add up the number of croutons for the 5 salads:
11 + 16 + 11 + 12 + 15 = 65
Next, divide the sum by the number of salads in the sample:
65 / 5 = 13
Therefore, the mean number of croutons per salad is 13.