Answer:
5
Step-by-step explanation:
Given that :
Miles ridden in Tuesday = 10
Miles ridden on Wednesday = 20
Sample size, n = 2
Mean :
(10 + 20) / 2
= 30 /2
= 15
Mean absolute deviation :
(|10 - 15| + |20 - 15|) / 2
(5 + 5) / 2
10 / 2
= 5
-28
2xy=2(7)(-2)=14(-2)=-28
