Why is it to find the mean of a data set?

The mean is the average of the set. While the mode is the most common number and the median is the middle number of the data set. Hope this helps!

It is helpful to find the mean because it tells the average better than the median and the mode, as the mode isn't accurate and medians are affected by outliers. Therefore, means give the most accurate measure of center, not being affected by outliers.

Ithink its 126 hope its

Okay so for every triangle has three angles that always add up to 180 degrees. and to tell the difference between whether they are secure, right or obtuse is that acute: has one angle that is less than 90 degrees. right triangle means there is at least one angle that is exactly 90 degrees. and an obtuse angle has an angle that is bigger than 180 degrees. i’ll do #13 as an example: 13. 40 and 50 so if every triangle has 180 degrees 40+50= 90 degrees then180-90= 90 degrees so the third angle is 90 degrees and because this triangle has a 90 degree angle it means it is a right triangle