The Solution:
Given the data below in dollars:
15 10 30 25 30 40 20 50 20
30 40 20 10 10 20 10 15 40
20 25 10 15 30 30 20 15 10
10 20 20 10 50 20 10 30 30
We are asked to find the frequency of $10.00.
Note:
The frequency of $10.00 is the number of times $10 appears in the given data.
So, the frequency of $10.00 is 9.
Therefore, the correct answer is 9.