Question 369109: The theoretical probability of undesirable side effects resulting from taking Grebex is 1 in 20. If 100 people take Grebex to lower their blood pressure, how many will encounter undesirable side effects?
Answer by neatmath(302)   (Show Source):
You can put this solution on YOUR website! This is a good example of using the Binomial Probability Distribution, because for each member of the sample, there can only be two outcomes.
In other words, for each person, they will either have undesirable side effects, or they will not!
The expected number of people who will have undesirable side effects is given by:
mean (or the expected value)=n*p
where n is the sample size and p is the theoretical underlying probability
so, we have
mean=100*(1/20)
mean=5
So, we can expect to see 5 people out of 100 who take this drug to have undesirable side effects.
I hope this helps!
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