Sheila and Ryan are saving money in a bank account. Sheila already has $54 and will deposit $25 each week
without withdrawing any money. Ryan already saved $89
but he can only deposit $20 each week without
withdrawing any money. How many months will it take
for them to have the same amount saved?

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