First you want to organize it from least to greatest: 4, 5, 5, <em>6, 10</em>, 11, 12, 13
Then look for the one in the middle. But oh wait there are 2 so you need to add 6 and 10 then divide it by 2 to get a median of 8.
A song I learned back then is this I don't know who it is by though: Mode, mode, mode is the most, Average is the mean.Median, median, median, median, The number in between.
i think answer is rational
Is their a picture that you’re referring to ?
If you’re asking how much do you need to make right angles it should be 90 degrees
15.7 of 80 percent is 12.56