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A cyclist rode 18 km, 24 km, 15 km, 30 km and 21 km on five days. What is the mean distance a day?
Contributed by StemPy LabTry it on paper first. A hint, the key idea and the worked solution are here when you need them.
A cyclist rode , , , and on five days. What is the mean distance a day?
Need a reminder? The key ideaShow
The mean is the total divided by how many values there are. Total = mean count.
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. Total. .
Step 2. Mean. .
Check. The mean lies between the smallest and the largest distance, and .
Answer: a day.
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