Which of the following pairs of before after results are discordant? a. Smoke/smoke b. Smoke/don't smoke c.

Question:

Which of the following pairs of before after results are discordant?

a. Smoke/smoke

b. Smoke/don't smoke

c. Don't smoke/smoke

d. Dont' smoke/don't smoke

Refer to the following table. The table summarizes results from an experiment in which subjects were first classified as smokers or nonsmokers, then they were given a treatment, then later they were again classified as smokers or nonsmokers (based on data from Pfizer Pharmaceuticals in clinical trials of Chantix).