Fitzgerald Clarke
05/29/2023 · Junior High School

4. In a class of 28 students, 25 were wearing blazers or ties or both. Seven wore blazers with no tie and eight wore blazers and ties. (i) Show this information on a Venn diagram. (ii) Find the probability that a student selected at random was wearing a tie but not a blazer. (iii) Find the probability that a student selected at random was wearing neither a tie nor a blazer

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(i) Venn Diagram: Represent the given information with B for blazers and T for ties. (ii) Probability of wearing a tie but not a blazer: \( \frac{17}{28} \) or approximately 0.6071. (iii) Probability of wearing neither a tie nor a blazer: \( \frac{3}{28} \) or approximately 0.1071.

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