Epidemiology Introductory Biostatistics

A continuous variable is best represented by which of the following? Histogram Box plot Stem-and-leaf plot All of the above Question 28 (5 points) The frequency of ordinal data is best represented by which of the following? Bar chart Histogram Box plot Stem-and-leaf plot Question 29 (5 points) What are rates called that are derived in relatively small, well-defined subgroups? Crude rates Specific rates Confounded rates Proportional rates Question 30 (5 points) When are two sets of outcomes mutually exclusive? If there is no outcome that belongs to both sets If two events are not complementary If the outcome of one event does not influence the outcome of another If the sample space equals 1