Geometry

Question Analysis
This question involves using the concept of non - mutually exclusive events in a real - life class - student preference scenario.
The main focus is on applying the formula for non - mutually exclusive events using the given number of students in each category.

Key Concept Explanation
As before, for non - mutually exclusive events A and B (where A is the event of a student liking math and B is the event of a student liking science),  P(A ∪ B) = P(A) + P(B) - P(A ∩ B).

Step-by-Step Solution
P(Math) = 18/30, P(Science)=15/30, P(Math ∩ Science) = 8/30.
P(Math ∪ Science) = 18/30 + 15/30 - 8/30= (18 + 15 - 8)/30 = 25/30 = 5/6.

Common Mistakes
One might make a calcu...