A new drug cures 75% of the patients to whom it is administered. It is given to 25 patients. Find the probabilities that among these patients, the following results occur. Use the normal distribution approximation to the binomial distribution. (a) Exactly 22 are cured. (b) All are cured. (c) No one is cured.
A new drug cures 75% of the patients to whom it is administered. It is given to 25 patients. Find the probabilities that among these patients, the following results occur. Use the normal distribution approximation to the binomial distribution. (a) Exactly 22 are cured. (b) All are cured. (c) No one is cured.
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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Round all answers to 4 decimal places

Transcribed Image Text:A new drug cures 75% of the patients to whom it is administered. It is given to 25 patients. Find the probabilities that among these patients, the following results occur. Use the normal distribution approximation to the binomial distribution.
(a) Exactly 22 are cured.
(b) All are cured.
(c) No one is cured.
(d) 14 or fewer are cured.
Use the table of areas under the standard normal curve given below.
Click here to view page 1 of the Areas under the Normal Curve Table.
Click here to view page 2 of the Areas under the Normal Curve Table.
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