3. An Internal Revenue Service inspector is to select 3 corporations from a list of 15 for tax auditpurposes. Of the 15 corporations, 6 earned profits and 9 incurred losses during the year for whichthe tax returns are to be audited. If the IRS inspector decides to select 3 corporations randomly,thena) Write down the appropriate probability distribution with its parameters.b) What is the probability that the number of corporations in these 3 that incurred lossesduring the year for which the tax returns are to be audited is at least 2?c) calculate are the mean and variance of this distribution?4. A washing machine in a laundromat breaks down an average of three times per month.

Total (N) = 15 Select (n) = 3 Losses (k) = 9 Probability of success will change at every trial.

Answered: 3. An Internal Revenue Service…

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Express House Delivery Service provides high quality service to customers. The company guarantees a refund of all charges if a package it is delivering does not arrive at its destination by the specified time. It is known from past data that despite all efforts, 2% of the packages mailed through this company do not arrive at their destinations within the specified time. Suppose a corporation mails 10 packages through Express House Delivery Service on a certain day.

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