Homework Help: math

Posted by Hannah on Tuesday, March 30, 2010 at 9:31pm.

collected for use in the approval process required by the
U.S. Food and Drug Administration (FDA). 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:

No Help Help
Drug 22 47
Placebo 31 20
aWhat is the probability that the participants perceived that their “medication”
helped if they received the drug?

b. the participants perceived that their “medication”

helped if they received the placebo?
c. the participants perceived that their “medication”
helped?

math - PsyDAG, Tuesday, March 30, 2010 at 11:49pm
a. I assume that the "Help" category is "perceived" as helping. Therefore it would be 47 divided by the grand total.

Use the same principle to answer the following two questions.

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