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The monthly rents of seven flats in a building, in thousands of rupees, are 12, 14, 13, 15, 12, 16…
Contributed by StemPy LabTry it on paper first. A hint, the key idea and the worked solution are here when you need them.
The monthly rents of seven flats in a building, in thousands of rupees, are and . The last one is a large penthouse.
- Find the mean and the median rent.
- Which describes a typical rent better, and why?
Need a reminder? The key ideaShow
The mean is the fair share, the median is the middle and the mode is the most common. An outlier drags the mean but hardly moves the median.
The worked solution
Have you tried it?
Work it out on paper first. It is fine to get stuck or make a mistake: that is how we learn. When you are ready, go through the solution one step at a time, and check each step against your own.
Step 1. Mean. thousand rupees.
Step 2. Median. Sorted: . The 4th value is thousand rupees.
Step 3. Which is typical. Six of the seven rents are between and thousand rupees. The mean, , is higher than all six, because the penthouse drags it up. The median stays with them.
Answer: mean and median thousand rupees. The median is the typical rent.
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