# Explain how to will the mean and the median affected after correcting the score. The instructor entered the test scores from statistics class of 25 students and calculated the mean and median of the scores. After checking it was discovered that the top score was entered wrong as 46 instead of 56.

Explain how to will the mean and the median affected after correcting the score.
The instructor entered the test scores from statistics class of 25 students and calculated the mean and median of the scores. After checking it was discovered that the top score was entered wrong as 46 instead of 56.
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i1ziZ
Here, the mean is calculated based on all observation and the median is calculated based on only half of the observations. Hence, after correcting the top score the median won't be affected but the mean test score would increase by 0.4 points $\left(=\frac{56-46}{25}\right)$.