GCSE Maths Practice: venn-diagrams

Question 10 of 10

Calculate probability a person likes dogs or cats.

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\( \begin{array}{l}\textbf{In a survey of 300 people, 180 like dogs, 150 like} \\ \textbf{cats, and 100 like both. What is the probability that a} \\ \textbf{person likes either dogs or cats?}\end{array} \)

Choose one option:

\( \frac{230}{300} \) \( \frac{250}{300} \) \( \frac{220}{300} \)

Add counts, subtract overlap, divide by total students.

Use inclusion-exclusion to avoid double-counting people who like both pets.