QUESTION 1 A review of emergency room records at hospital was performed to determine the probabilitydistribution of the number of patients (X) entering the emergency room during a 1-hour period. Thefollowing table lists this probability distribution.x=x0123456Pr (x=x)0.27250.3543.2303*0.03240.00840.0023Determine the probability that the number of patients entering the emergency room during a randomlyselected 1-hour period is(a) Find the value of ‘*’. (b) Determine P(1 ≤ ? < 4). (c) Find E(X).

From the provided information, x P (X = x) 0 0.2725 1 0.3543 2 0.2303 3…

Answered: A review of emergency room records at…

College Algebra

10th Edition

ISBN:9781337282291

Author:Ron Larson

Publisher:Ron Larson

Chapter8: Sequences, Series,and Probability

Section8.7: Probability

Problem 4ECP: Show that the probability of drawing a club at random from a standard deck of 52 playing cards is...

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QUESTION 1
A review of emergency room records at hospital was performed to determine the probability
distribution of the number of patients (X) entering the emergency room during a 1-hour period. The
following table lists this probability distribution.

x=x	0	1	2	3	4	5	6
Pr (x=x)	0.2725	0.3543	.2303	*	0.0324	0.0084	0.0023

Determine the probability that the number of patients entering the emergency room during a randomly
selected 1-hour period is
(a) Find the value of ‘*’.
(b) Determine P(1 ≤ ? < 4).
(c) Find E(X).

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