Central Tendencyhard
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A student calculates the mean of a set of 10 numbers as 20. Later, it is discovered that one number recorded as 15 should have been 25, and another recorded as 30 should have been 20. What is the corrected mean?
A student calculates the mean of a set of 10 numbers as 20. Later, it is discovered that one number recorded as 15 should have been 25, and another recorded as 30 should have been 20. What is the corrected mean?