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In analyzing patient admissions at a hospital, it is found that 31,709 patients were admitted in a recent year Let the random vaniable x represent the number of pationt admissions in one day, and assume that it has a Poisson distribution. What is the standard deviation for the values of the random variable x? What is the variance? The standard deviation is (Round to three decimal places as needed.) The variance is (Round to three decimal places as needed.)

In analyzing patient admissions at a hospital, it is found that 31,709 patients were admitted in a recent year Let the random vaniable x represent the number of pationt admissions in one day, and assume that it has a Poisson distribution. What is the standard deviation for the values of the random variable x? What is the variance? The standard deviation is (Round to three decimal places as needed.) The variance is (Round to three decimal places as needed.)

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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In analyzing patient admissions at a hospital, it is found that 31,709 patients were admitted in a recent year Let the random variable x represent the number of patient admissions in one day, and assume that it has a Poisson distribution. What is the standard deviation for the values of the random variable x? What is the variance? The standard deviation is (Round to three decimal places as needed.) The variance is (Round to three decimal places as needad.)
Transcribed Image Text:In analyzing patient admissions at a hospital, it is found that 31,709 patients were admitted in a recent year Let the random variable x represent the number of patient admissions in one day, and assume that it has a Poisson distribution. What is the standard deviation for the values of the random variable x? What is the variance? The standard deviation is (Round to three decimal places as needed.) The variance is (Round to three decimal places as needad.)
Use the following results from a test for marijuana use. Among 169 subjects with positive test results, there are 28 false positive results. Among 140 negative test results, there are 4 false negative results. a. How many subjects are included in the study? b. How many of the subjects had a true negative result? c. What is the probability that a randomly selected test subject had a true negative result? a. There are subjects included in the study. (Type a whole number.) b. There are subjects that had true negative result. (Type a whole number.) c. The probability is (Round to three decimal places as needed.)
Transcribed Image Text:Use the following results from a test for marijuana use. Among 169 subjects with positive test results, there are 28 false positive results. Among 140 negative test results, there are 4 false negative results. a. How many subjects are included in the study? b. How many of the subjects had a true negative result? c. What is the probability that a randomly selected test subject had a true negative result? a. There are subjects included in the study. (Type a whole number.) b. There are subjects that had true negative result. (Type a whole number.) c. The probability is (Round to three decimal places as needed.)
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