Megan and Ryan want to roll two dice to see who will do the dishes. They decide that any sum of 6 or below means Megan does the dishes and any sum of 7 or higher means Ryan does the dishes. Is this game fair? Explain why or why not.
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Suppose y varies directly with x. write a direct variation equation that relates x and y. then find the value of y when x=12 y=7 when x=3

What is the simplified form of square root of 400 to the 100th power ?

Anew test for ra is being developed. the test is administered to 750 patients with ra and 750 without ra. for the sake of the question, assume the prevalence of ra in this population is 50%. of the 750 patients with ra, 575 have a positive result. of the 750 patients without ra, 150 have a positive result. what is the positive predictive value of the new test? a575/(575+150) b. 600/(600+ 150) c. 575/(575+125) d. 600/(600+ 125)