00:01
We want to find the mean, median, and mode for the data.
00:04
By hand, you can calculate the mean by adding all the numbers up and dividing by how many there are.
00:12
So, for instance, we could add 13 plus 15, plus 14 plus 10, plus 16 plus 9, plus 17 plus 17 plus 12, plus 13 plus 11, which is 130, and then divide by how long.
00:36
Many values we have, which is 10.
00:41
So that is a mean of 13.
00:48
You can, with some calculators, also calculate it by entering a list.
00:56
Like with decimodes, i would just create a list called l and you just list the values.
01:07
And then you could just say i'd like to find the mean of the list and you see it's 13, but it's also good to know where it comes from.
01:16
Next, we want to find the median.
01:22
Let's see that the median here is also 13.
01:27
But here's how you would do it by hand.
01:31
You'd reorder from least to greatest...