Chapter 3.4, Problem 8E

Remainder Round all answers to two decimal places unless otherwise indicated.

Crayola Colors The table below shows the number C of Crayola colors available t years after 1990.

$\mathit{t}$ = years since 1990	$\mathit{C}$ = number of colors
3	8
49	48
58	64
72	72
90	80
98	120
103	120

a. Find the equation of the regression line for $C$ as a function of $t$.

b. How many Crayola colors does the regression line indicate for 1993? (Round your answer to the nearest whole number. Note that the actual number is 96.)

c. Plot the data points and the regression line.