What is the average of 78, 85, 92, 87, and 83?

85, the sum divided by the count.

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  1. 85 ✔
  2. 83
  3. 87

Why: Sum: 78 + 85 + 92 + 87 + 83 = 425. Divide by the 5 numbers: 425 ÷ 5 = 85.

Huh, didn't know that: A mean is a typical value: it is never smaller than the smallest number or bigger than the biggest.

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Why did the mean get invited to every party? It was the center of attention.
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References

Answer: 85. Sum: 78 + 85 + 92 + 87 + 83 = 425. Divide by the 5 numbers: 425 ÷ 5 = 85.

  1. OpenStax Prealgebra 2e, Averages and Probability openstax.org/books/prealgebra-2e/pages/5-5-averages-and-probability
    To find the mean score, he would add them and divide by 3
    Checked 2026-10-12.

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