**HW#77**

p. 225: 4, 7, 19, 28; p. 203: 15, 27, 30; p. 205: 18, 21; p. 171: 35, 37; p. 150: 44; p. 82: 19

p. 27: 45, 46; p. 23: 13, 16; p. 34: 14, 28, 31; p. 46: EE 9-12; p. 318: 1; p. 321: 19; p. 356: 37; p. 196: 1, 5, 9, 33, 37, 38

**HW#78**

p. 403-404: 1-25 ODD, 31-41 ODD, 59-65 ODD, 67, 68

**HW#79**

p. 549: 1-15 ODD, 17-22 ALL, 23

**HW#80**

p. 506: 1, 2, 15, 16

Use table given for 1 and 2 to also find mean and standard deviation. Also use table to create scatter plot for the values. Make the x-axis “years after 1976,” so the value for 1976 is t=0, and you would plot (0, $14958). Create a line of best fit, find residuals, and square root of the average of the residuals squared.