Mean (aka average)-79.8928
<em>add all the numbers together and divide by how many numbers there are </em>
<u>sum of terms-2237</u>
<u>number of terms-28</u>
Median- 81
I do it this way-
order the numbers from least to greatest
cross off the front number and back number until you are left with a middle
in this case there were 2
80 and 82
the average of those two is 81
Standard Deviation-15.37237
Interquartile Range-22.5
<em>25th percentile-71</em>
<em>50th percentile-81</em>
<em>75th percentile-93</em>
