A study looked at absorption of potassium, measured in milligrams (mg), from different sources. Data were recorded for 29 subjects who ate a controlled diet that included 40 mEq of potassium from a supplement for five days.

Click to download the data in your preferred format.

CSV Excel JMP Mac-Text Minitab14-18 Minitab18+ PC-Text R SPSS TI CrunchIt!

Compute the mean potassium absorption. Give your answer to two decimal places.
⎯⎯⎯=
Compute the median potassium absorption. Give your answer to two decimal places.
=
Which measure represents a typical amount of absorption? Why?

The mean represents a typical amount of absorption because it is based on all of the data values.

The mean represents a typical amount of absorption, because the distribution is right‑skewed.

Both measures represent typical amounts of absorption, because they are measures of the center of the distribution.

The median represents a typical amount of absorption because the distribution is right‑skewed.