SOLUTION: In the tests of a new pharmaceutical product, data were collected for use in the approval process required by the U.S. Food and Drug Administration (FDA). Some participants were

Algebra.Com
Question 416737: In the tests of a new pharmaceutical product, data were
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:
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?
b) the participants perceived that their “medication”
helped if they received the placebo?
c) the participants perceived that their “medication”
helped?
I'm having a huge issue with this. Could you please show your work, or just explain how it's done so I can learn the method as well as understand what the answers are? Thanks so much!!!!
Answer by ewatrrr(24785)   (Show Source): You can put this solution on YOUR website!


Hi

          No Help  Help  Total

Drug:       22     47    69

Placebo:    31     20    51

Total       53     67    120

What is the probability that: 

a) the participants perceived that their “medication”

helped if they received the drug?  47/69

b) the participants perceived that their “medication”

helped if they received the placebo? 20/51

c) the participants perceived that their “medication”

helped?  67/120



 

RELATED QUESTIONS


In the tests of a new pharmaceutical product, data were
collected for use in the... (answered by stanbon)

Quality Associates, Inc., a consulting firm, advises its clients about sampling and... (answered by onyulee)

Each year, ratings are compiled concerning the performance
of new cars during the first... (answered by ikleyn)

Mrs. Greycloud works in a lab at pharmaceutical company. She needs to make 23 liters of a  (answered by ikleyn)

A survey of 865 voters in one state reveals that 408 favor approval of an issue before a... (answered by stanbon)

When testing for current in a cable with six color-coded wires, the... (answered by ikleyn)

QUESTIONS 4
It is recently found that eating eggs does not increase a person’s... (answered by ikleyn)

Mr. Grey cloud works in the lab at a pharmaceutical company. He needs to make 24 liters... (answered by richwmiller,greenestamps)

Mr. Rosoff works in the lab at a pharmaceutical company. He needs to make 44 liters of a... (answered by josgarithmetic)