AMC 8 2025 - Problem 9

The figure shows a 3x3 grid with some cells shaded. What fraction of the large square is shaded? This is a statistics problem: the scores 70, 75, 80, 85, 90 have mean 80. If the score 70 is replaced by 100, what is the new mean?

(A)
(B)
(C)
(D)
(E)
Answer:
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Tagged: AMC 8 free test, AMC 8 daily question

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