Unit 8 Correlation and Regression Please help answer these
there are others in the same format
1.n=11,a=0.01
r= 0.735
r=0.602
r=0.765
r=0.735

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Lisa has three classes that each last 50 minutes. what is the total number of minutes of the three classes

Use the net as an aid to compute the surface area of the triangular prism. a) 550 m2 b) 614 m2 c) 670 m2 d) 790 m2

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?