The arithmetic mean of the marks obtained by 50 students was calculated as 44. It was later discovered that a score of 36 was misread as 56. Find the correct value of arithmetic mean of the marks obtained by the students.
A)43
B)43.6
C)45
D)50

Question

Quizplus · Accepted Answer

The correct arithmetic mean can be calculated by subtracting the misread score (56) from the total score and adding the correct score (36). The new total score is 50 * 44 - 56 + 36 = 2200. The correct arithmetic mean is 2200 / 50 = 44.

The Arithmetic Mean of the Marks Obtained by 50 Students