Using the same chloride data set, what is the median?

Using the same chloride data set, what is the median?

• A. 108
• B. 105
• C. 112
• D. 107

Answer: (A)

The median is the middle value of a dataset when it’s arranged from smallest to largest. It reflects a central tendency that isn’t swayed by extreme numbers. In the chloride data set, when all measurements are sorted, the central observation is 108. Since there is a single middle value, that is the median. If there were an even number of measurements, we’d average the two middle values, but here one value sits exactly in the middle. So 108 is the correct median. The other numbers are simply not the central, middle value of the ordered data.

The median is the middle value of a dataset when it’s arranged from smallest to largest. It reflects a central tendency that isn’t swayed by extreme numbers. In the chloride data set, when all measurements are sorted, the central observation is 108. Since there is a single middle value, that is the median. If there were an even number of measurements, we’d average the two middle values, but here one value sits exactly in the middle. So 108 is the correct median. The other numbers are simply not the central, middle value of the ordered data.