Step 1
find the values of x and y
x y
1 3
2 3
3 4
2 5
3 6
4 7
5 8
5 9
6 11
6 12
7 12
7 14
8 14
using a excel tool
see the attached table
the correlation coefficient r is equal to 0.97
the answer is the most appropriate correlation coefficient for the scatter plot is 0.95
Best way to solve this is by using


s=(12+8+17)/2
=18.5
using the formulae
area =43.5
Answer:
1. a/b = 2
2. a/b = 1/3
Step-by-step explanation:
3a=6b
We want to find a/b
Divide each side by b
3a/b=6b/b
3a/b = 6
Divide each side by 3
3a/3b =6/3
a/b = 2
15a=5b
We want to find a/b
Divide each side by b
15a/b = 5b/b
15a/b = 5
Divide each side by 15
15 a/15b = 5/15
a/b = 1/3
-6 because you take 10 away from 4 going into the negatives