(Step-by-Step) Scores on an exam were distributed normally with a mean of μ=50, and a standard deviation of σ=10. Students with scores in the top 10% received
Question: Scores on an exam were distributed normally with a mean of μ=50, and a standard deviation of σ=10. Students with scores in the top 10% received a chocolate bar, and students with scores in the top 25% received a stick of gum.
- What is the minimum score needed to receive a chocolate bar? (3 marks)
- Would a score of 57 earn a stick of gum? (4 marks)
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