Home mortgages use amortization schedules, but the principal balance might be 10 or 100 times larger than Janet’s $3500 trip. They’re typically paid back over a period of 30 years at a much lower interest rate (~4%). Explain what you think that amortization schedule might look like.

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)