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AP Statistics/Unit 1: Exploring One-Variable Data
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Mistake in Determining the Median

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A researcher analyzed the Eastern Conference win totals shown below. The correct median of these nine values is 41. However, due to a sorting error, the researcher reported the median as 42. Which of the following best explains this mistake?

Eastern Conference Win Totals (Sorted)

Data: 34, 36, 38, 40, 41, 42, 44, 46, 48

A

He omitted an outlier from the data set before computing the median.

B

He mistakenly calculated the mean instead of the median.

C

He misordered the win totals, leading him to select the wrong middle value as the median.

D

He confused the mode with the median in the dataset.

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