Jefferson's investment portfolio is shown below. What is his weighted mean ROR? Investment Amount Invested ROR
Money Market Account($6,400
3.5%
Government Bond $1,500
11.2%
Preferred Stock $2,300
2.1%
Common Stock A $600
9.8%
(4 points)
a
3.10%
00
b
2.34%
3.23%
d
4.1596

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?