Answer:
0.44
Step-by-step explanation:
This is a probability question asking for the probability of a single event.
<u>To find this answer, you just need to find the following fraction:</u>
P= (number of favorable outcomes) / (number of total possible outcomes)
Given that, the total possible outcomes in our question are 225.
This is because the sample space is of students who are taking physics. ("given that they are taking physics")
Our favorable outcomes are 99 since 99 students are taking both AMDM and physics. You can not guarantee that the 228 students mentioned at the beginning are in your sample space as many have not taken physics, so 99 is your number of favorable outcomes.
If we put that in the equation we get:
P=99/225
Simplify
0.44
or 44%