Answers to Practice Opportunities
3.
Answers: y = 1.54 + 0.91x; r = 0.99; the mean of y = 2.33
Solution:
[
ON][
2ndF] [DRG] [2][
2ndF] [DEL]Enter Data
[ 1] |
[ STO] |
[ 3] |
[ 2ndF] [STO] |
[ 1] [2] |
[ M+] |
[ 3] |
[ STO] |
[ 4] |
[ 2ndF] [STO] |
[ 1] |
[ M+] |
[ 5] |
[ STO] |
[ 6] |
[ 2ndF] [STO] |
[ 7] |
[ M+] |
[ 2] |
[ STO] |
[ 3] |
[ 2ndF] [STO] |
[ 1] [3] |
[ M+] |
[ 3] |
[ STO] |
[ 5] |
[ 2ndF] [STO] |
[ 0] |
[ M+] |
[ +/-] [7] |
[ STO] |
[ +/-] [5] |
[ 2ndF] [STO] |
[ 6] |
[ M+] |
Press [RCL][(] and your display will tell you that the a is 1.539285357
Press [RCL] [)] and your display will tell you that the b is 0.910819738
Press [RCL] [÷] and your display will tell you that the r is 0.993456779
Press [RCL] [7] and your display will tell you that the mean of y is 2.333333333
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