In a survey of the number of hours spent doing math homework per week, the first quartile value was 1.2 hours and the interquartile range was 1.9 hours. Which of the following is the third quartile value of this data
set?

Rose drew a regression line for this paired data set. her line passed through (1, 2) and (3, 5) . what is the equation of rose's regression line?

Y=(x+3)(x-4)(x+1)^2 sulutions? multiplicity?

There are three bags: a (contains 2 white and 4 red balls), b (8 white, 4 red) and c (1 white 3 red). you select one ball at random from each bag, observe that exactly two are white, but forget which ball came from which bag. what is the probability that you selected a white ball from bag a?