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The mean of 36 numbers was found as 42. Later on, it was determined that a number 47 was misread as 41. Find the correct mean of the given numbers (rounded off to two decimal places).

A43.74

B42.17

C42.83

D43.62

Answer:

B. 42.17

Read Explanation:

Correct mean = (sum of 36 numbers + 6) / 36 = 42.17 (after correcting the misread value).


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