In designing an experiment involving a treatment applied to 9 test subjects, researchers plan to use a simple random sample of 9 subjects selected from a pool of 27 available subjects. (recall that with a simple random sample, all samples of the same size have the same chance of being selected.) answer the questions below. a. how many different simple random samples are possible?

Type the correct answer in each box. use numerals instead of words. if necessary, use / for the fraction bar. consider the given table.

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?

Cody ran nine miles on his first day of training. the next day he ran 1/8 that distance. how far did he run the second day?