GCSE Maths Practice: two-way-tables

Question 10 of 10

Calculate probability a student studies math or physics.

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\( \begin{array}{l}\textbf{In a two-way table, 500 students were surveyed, 300 study math,} \\ \textbf{200 study physics, and 100 study both. What is the} \\ \textbf{probability that a student studies either math or physics?}\end{array} \)

Choose one option:

\( \frac{400}{500} \) \( \frac{350}{500} \) \( \frac{300}{500} \)

Add counts, subtract overlap, divide by total students.

Use inclusion-exclusion to avoid double-counting students who study both subjects.