[See Steps] Ten thousand adults were given a literacy test. The results were nearly normally distributed (μ = 75, σ = 15). About how many scored


Question: Ten thousand adults were given a literacy test. The results were nearly normally distributed ( \(\mu \) = 75, \(\sigma \) = 15).

  1. About how many scored between 60 and 80?
  2. Approximately what score did only the top 15% exceed?
  3. Find the percentile rank of the person who scored 88.

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