Answer:
832.5.
Step-by-step explanation:
sorry, but this cannot type fractions, so just take the answer.
Check the picture below.
slope formula
-10--1/5-2
-9/3
-3
point slope form
y--1=-3(x-2)
y+1=-3x+6
y=-3x+5
Given that
Marks of ten friends
23%, 37%, 45%, 49%, 56%, 63%, 63%, 70%, 72% and 82%
Mean = 56
Variance = 284.6
Standards deviation = 16.9
