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Biostatistics & Research · single question

Five dental students scored 64, 56, 48, 66, and 66 on an exam. What are the MEDIAN and MEAN respectively?

  1. Median = 60, Mean = 64
  2. Median = 64, Mean = 60
  3. Median = 64, Mean = 68
  4. Median = 66, Mean = 64
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Correct answer: B. Median = 64, Mean = 60

Arranged in order: 48, 56, 64, 66, 66. The median (middle value of ordered set) = 64. The mean = (48+56+64+66+66) ÷ 5 = 300 ÷ 5 = 60. So Median = 64, Mean = 60 → Answer B.

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