Write missing values in the statements a. and b. Write proper names in the statement c. Alex and Boris are taking college preparatory exams. Boris writes the SAT test and scores 1050 out of 1060. Alex writes ACT test, and scores 20 out of 35. If the means and standard deviations of scores for the ACT test are 25 and 5, and for the SAT test are 1150 and 50, then a. Alex's z-score is b. Boris z-score is c. Write proper names above the lines below: performed on exam better than

Joaquin gets paid every Friday. FI is paychecks for the past 8 Fridays were $315, $236.25, $236.25, $236.25, $315, $315, $236.25, $393.75. Find the (a) mean, (b) median, and (c) mode.

Explain why “the sum of xand y” is the same as “the sum of yand x,” but “the difference of xand y” is not the same as “the difference of yand x.” Try substituting two random numbers for x and yto help you explain.