<span>80.925 is the correct answer</span>
Okay, So To Find The Mean, We Need To Look At The Values.
-588,-838,-691,-818,-846,-725,-605,-732,<span>-750
</span>So, We Add Them, Then Divide.
-588+-838+-691+-818+-846+-725+-605+-732+-750
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9
This Is -732.555556.Rounded Is -733
Now, The Median. The Middle Value.
The Middle Value Is -846.
So, The Mean Is A, 113 Points Higher.
Replace P with 15:
d = -3(15)^2 + 168(15) - 315
d = -3(225) + 2520 - 315
d = -675 + 2520 -315
d = 1530