Mathematics, 01.06.2021 21:10 lizdeleon248

A teacher records the test marks of 25 students and calculates the class mean to be 72. Jean-Pierre finds out that his mark of 86 was recorded incorrectly as 36. What will the corrected class’s mean be?

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A teacher records the test marks of 25 students and calculates the class mean to be 72. Jean-Pierre...

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