Question: when using a line graph, why is it important to only graph 1-3 series of data? a. a line graph in microsoft excel will not allow you to graph more that 3 series of data. b. it will not show changes over time if you use more than 3 series of data. c. the lines are to thick to use more than 3 series. d. more than 3 series of data causes to many lines on the graph, which makes it confusing to read.

Aresearcher wants to do a web-based survey of college students to collect information about their sexual behavior and drug use. direct identifiers will not be collected; however, ip addresses may be present in the data set. risk of harm should be evaluated by: solely by the magnitude or severity of expected harm. both the magnitude (or severity) and the probability (or likelihood) of harm. solely by the probability of expected harm. neither the magnitude or probability of harm.