What is the value of:
30-2(7+2)-1?
11
14
17
19

Mr. walker is looking at the fundraiser totals for the last five years , how does the mean of the totals compare to the median?

Use this graph to find the cost of 6 show tickets

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)