The following table gives the data from a local school district on children's ages (x) and the reading level (y)
Ages (in yrs.), x 6 7 8 9 10 11 12 13 14 15
Reading level, y 1.3 2.2 3.7 4.1 4.9 5.2 6.0 7.1 8.5 9.7
a). Find the correlation coefficient (r) between age (in years) and reading level. (write your calculator steps

.9889

Step-by-step explanation:

Calculators work in different ways, so it's impossible for me to describe the steps without knowing which calculator you have.

I made a video showing your problem in a TI-83 graphing calculator.

https://youtu.be/jJYx_XdBnOM

a) t'(-3, 6) and v'(0, 3)  

step-by-step explanation:

yes the total will be same because in both of them the expression.is rearranged but their sign remains the same hence it hss just been shuffled