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February 1, 2015

February 1, 2015

Posted by **dic** on Wednesday, March 17, 2010 at 4:37pm.

No Help Help

Drug 22 47

Placebo 31 20

What is the probability that

a. 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?

- geometry -
**Damon**, Wednesday, March 17, 2010 at 4:48pmtotal number that got drug = 22+47 = 69

total number that got placebo = 31+20 =51

total number not helped =22+31 = 53

total number helped = 67

total number of people = 120 in study

a) 47/69

b) 20/51

c) 67/120

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