SOLUTION: A clinical test on humans of a new drug is normally done in three phases. Phase I is conducted with a relatively small number of healthy volunteers. For example, a phase I test
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Question 1181145: A clinical test on humans of a new drug is normally done in three phases. Phase I is conducted with a relatively small number of healthy volunteers. For example, a phase I test of a specific drug involved only 5 subjects. Assume that we want to treat 5 healthy humans with this new drug and we have 9 suitable volunteers available.
If 5 subjects are selected from the 9 that are available, and the 5 selected subjects are all treated at the same time, how many different treatment groups are possible?
There are __ different treatment groups possible. Answer by Solver92311(821) (Show Source):
