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11) Michael gets test grades of 71, 76, 81, and 88. He gets a 77 on her final exam. Find the weighted mean if the

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11) Michael gets test grades of 71, 76, 81, and 88. He gets a 77 on her final exam. Find the weighted mean if the tests each count for 10% and the final exam counts for 60% of the final grade. Round to one decimal place. A) 77.8 B) 78.6 C) 235.8 D) -80.2

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