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12. The amount of paracetamol per tablet of a pain-relieving medicine is normally distributed with mean 500 mg and standard deviation 160 mg. A dose containing less than 300 mg is ineffective in alleviating toothache. In a trial of this medicine on 20 people suffering from toothache, what is the probability that two or more people get less than the effective dose?

12. The amount of paracetamol per tablet of a pain-relieving medicine is normally distributed with mean 500 mg and standard deviation 160 mg. A dose containing less than 300 mg is ineffective in alleviating toothache. In a trial of this medicine on 20 people suffering from toothache, what is the probability that two or more people get less than the effective dose?

A First Course in Probability (10th Edition)
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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12. The amount of paracetamol per tablet of a pain-relieving medicine is normally distributed with mean 500 mg and standard deviation 160 mg. A dose containing less than 300 mg is ineffective in alleviating toothache. In a trial of this medicine on 20 people suffering from toothache, what is the probability that two or more people get less than the effective dose?
Transcribed Image Text:12. The amount of paracetamol per tablet of a pain-relieving medicine is normally distributed with mean 500 mg and standard deviation 160 mg. A dose containing less than 300 mg is ineffective in alleviating toothache. In a trial of this medicine on 20 people suffering from toothache, what is the probability that two or more people get less than the effective dose?
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