Rochelle and Denae started with the same amount of money in their bank accounts. Rochelle made three withdrawals of $25 and then wrote a $100 check. Denae deposited $5 and then wrote a $200 check. Find the total change in the amount of money in Rochelle's account. Find the total change in the amount of money in Denae's account.

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)