GCSE Maths Practice: venn-diagrams

Question 8 of 10

Calculate probability a person likes chocolate or vanilla.

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\( \begin{array}{l}\textbf{In a survey of 50 people, 30 like chocolate, 20 like vanilla,} \\ \textbf{and 10 like both. What is the probability that a person likes} \\ \textbf{chocolate or vanilla?}\end{array} \)

Choose one option:

\( \frac{40}{50} \) \( \frac{30}{50} \) \( \frac{20}{50} \)

Add counts, subtract overlap, divide by total students.

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