00:01
This problem says the average cost of a one -hour massage in 10 large cities are 89, 75, 78, 83, 86, 92, 81, 76, 82, and 84.
00:11
And we want to find the values of q1, q2, and q3.
00:14
And to figure those out, we need our list in order from least to greatest, which we have in our second list here.
00:20
And to start off, we are going to find q2 first, because q2, or our second quartile, is often noted as the median.
00:27
And when we have an even number of observations, which we have here with the 10 large cities, that means we're going to have two numbers in the middle.
00:34
And those two values are 82 and 83.
00:37
And the median would come from the average of those two values.
00:40
So we would add those up and then divide by 2...