A pharmacist estimates that a chemotherapy drug produces a 75% improvement in lung cancer patients. If this treatment is randomly given to 7 lung cancer patients. (Approximate your answer to two decimal places) a) What is the probability that no patient will get better? b) What is the probability that exactly 2 patients will improve? c) What is the probability that they will improve in at least 3 patients?

College Algebra
7th Edition
ISBN:9781305115545
Author:James Stewart, Lothar Redlin, Saleem Watson
Publisher:James Stewart, Lothar Redlin, Saleem Watson
Chapter9: Counting And Probability
Section: Chapter Questions
Problem 14T: An unbalanced coin is weighted so that the probability of heads is 0.55. The coin is tossed ten...
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A pharmacist estimates that a chemotherapy drug produces a 75% improvement in lung cancer patients.
If this treatment is randomly given to 7 lung cancer patients. (Approximate your answer to two decimal.
places)
a) What is the probability that no patient will get better?
b) What is the probability that exactly 2 patients will improve?
c) What is the probability that they will improve in at least 3 patients?
Transcribed Image Text:A pharmacist estimates that a chemotherapy drug produces a 75% improvement in lung cancer patients. If this treatment is randomly given to 7 lung cancer patients. (Approximate your answer to two decimal. places) a) What is the probability that no patient will get better? b) What is the probability that exactly 2 patients will improve? c) What is the probability that they will improve in at least 3 patients?
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