Casio fx-9860GII - How to Determine “R” Using the Casio Fx-9860 GII; How to Enter Recursive Data into a Table Using the Casio Fx-9860 GII

(1b) How to determine “r” using the Casio fx-9860GII
Use the same data:
WEEK 1 2 3 4 5 6 7 8 9 10
HEIGHT 5 12 26 39 51 88 94 103 112 115
1. After entering the bivariate data and graphing, as
shown in the last two sections, press
q(CALC).
2. Press
w(X).
3. Press q(ax+b).
4. The correlation coefficient or “r” is 0.98109874.
(1c) How to enter recursive data into a table using the Casio fx-9860GII
Coen decides to take a job with a company that sells magazine subscriptions. He is paid $20
to start selling and then earns $1.50 for each subscription he sells. Limit your list to 50
entries.