Question 386802
Some participants
were given a placebo, an inert substance that
looks like the drug; others were given the drug. The
data are shown in the following table:
Drug:    No Help 22 Help 47
Placebo: No Help 31 Help 20
What is the probability that:
a. the participants perceived that their “medication”
helped if they received the drug?
Ans: 47/69
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b. the participants perceived that their “medication”
helped if they received the placebo?
Ans: 20/51
----------------------
c. the participants perceived that their “medication”
helped?
Ans: 67/120
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Cheers,
Stan H.