5. which movie had a greater variability in ages of the audience?

hint: the variability of a data set refers to how much the values in the data set vary or how spread out they are.

a
movie a

b
movie b

c
both about the same

6. which movie had the audience with the younger median age?

hint: the median is the middle value and equal to the second quartile

a
movie a

b
movie b

c
both about the same

Atrain leaves little? rock, arkansas, and travels north at 90 kilometers per hour. another train leaves at the same time and travels south at 80 kilometers per hour. how long will it take before they are 680 kilometers? apart?

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)

Use the drop-down menus to complete the statements to match the information shown by the graph.