A survey includes 200 participants, but only 180 report their smoking status. Of those 180, 45 are current smokers. What percentage should be reported as current smokers among participants with known smoking status?
Two districts have 200 and 100 malaria cases, respectively. Their populations are 100,000 and 20,000. Which presentation allows a fair comparison of annual malaria incidence, assuming comparable surveillance?
In a standard box plot, what does the box represent?
Which feature usually distinguishes a histogram from a bar chart?
An analyst presents the same five category counts in a table and an identical bar chart, with no additional information. Which revision would usually improve a concise report?