3-127. + Heart failure is due to either natural occurrences (87%) or outside factors (13%). Outside factors are related to induced substances or foreign objects. Natural occurrences are caused by arterial blockage, disease, and infection. Assume that causes of heart failure for the individuals are independent. (a) What is the probability that the first patient with heart fail- ure who enters the emergency room has the condition due to outside factors? (b) What is the probability that the third patient with heart fail- ure who enters the emergency room is the first one due to outside factors? (c) What is the mean number of heart failure patients with the con- dition due to natural causes who enter the emergency room before the first patient with heart failure from outside factors?
3-127. + Heart failure is due to either natural occurrences (87%) or outside factors (13%). Outside factors are related to induced substances or foreign objects. Natural occurrences are caused by arterial blockage, disease, and infection. Assume that causes of heart failure for the individuals are independent. (a) What is the probability that the first patient with heart fail- ure who enters the emergency room has the condition due to outside factors? (b) What is the probability that the third patient with heart fail- ure who enters the emergency room is the first one due to outside factors? (c) What is the mean number of heart failure patients with the con- dition due to natural causes who enter the emergency room before the first patient with heart failure from outside factors?
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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Transcribed Image Text:3-127. + Heart failure is due to either natural occurrences
(87%) or outside factors (13%). Outside factors are related to
induced substances or foreign objects. Natural occurrences are
caused by arterial blockage, disease, and infection. Assume
that causes of heart failure for the individuals are independent.
(a) What is the probability that the first patient with heart fail-
ure who enters the emergency room has the condition due
to outside factors?
(b) What is the probability that the third patient with heart fail-
ure who enters the emergency room is the first one due to
outside factors?
(c) What is the mean number of heart failure patients with the con-
dition due to natural causes who enter the emergency room
before the first patient with heart failure from outside factors?
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