Acolored chip is yellow on one side and red on the other. the chip was flipped 50 times and landed on yellow side up 28 times. what is the relative frequency of the chip landing with the yellow side facing up? a. 30% b. 44% c. 56% d. 60%

Data from 2005 for various age groups show that for each $100 increase in the median weekly income for whites, the median weekly income of blacks increases by $105. also, for workers of ages 25 to 54 the median weekly income for whites was $676 and for blacks was $527. (a) let w represent the median weekly income for whites and b the median weekly income for blacks, and write the equation of the line that gives b as a linear function of w. b = (b) when the median weekly income for whites is $760, what does the equation in (a) predict for the median weekly income for blacks?