GCSE Maths Practice: two-way-tables

Question 1 of 10

Calculate probability of a student liking rock or pop music.

\( \begin{array}{l}\textbf{In a survey of 100 students, 60 like rock,} \\ \textbf{40 like pop, and 25 like both. What is the} \\ \textbf{probability that a student likes either rock or pop music?}\end{array} \)

Choose one option:

Add counts, subtract overlap, divide by total students.

Use inclusion-exclusion to avoid double-counting students who like both genres.