There are 5 numbers in your list.
Add them up and divide by 5.
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20.37 is the mean.
21 + 17 + 16 = 54 And there are three numbers so average = 54/3 = 18
21.8Simply add them all up, and then divide by how many numbers you have.
mean=19.1 median=18 mode=18 range=10 there are websites all over that help with this stuff just Google how to find mode mean range and median and you will get tons of results
Add them all up and divide by 5. The mean is 23.