Make your own free website on Tripod.com

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

Click here to return to Calculator Instructions