Answered: If a student is selected at random,…

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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Question

Answer the following:

1. In a recent survey, the following data were obtained in response to the question, "If the number of summer classes were increased, would you be more likely to enroll in one or more of them?

Class	Yes	No	No opinion
Freshmen	22	8	3
Sophomores	16	3	3

If a student is selected at random, find the probability that the student is a sophomore or less likely to enroll in one or more of them.

2. The probability that a certain machine will produce a defective item is 1/4. If a random sample of 7 items is taken from the output of this machine, what is the probability that there will be 3 or 4 defectives in the sample?

3. There are 5 patients on a ward of a hospital who are monitored by 1 staff member. If the probability of a patient requiring emergency attention by a staff member is 0.30, assuming that the patients behave independently, what is the probability that there will not be sufficient staff to attend to all emergencies?

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