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IIL. Short Answer. (6 points each) 20) When a com puter goes down, there is a 75

ID: 3058524 • Letter: I

Question

IIL. Short Answer. (6 points each) 20) When a com puter goes down, there is a 75% chance that it is due to an overload and a 15% chance that it is due to a software problem. There is an 85% chance that it is due to an overload or a software problem. What is the probability that both of these problems are at fault? What is the probability that there is an overload but no software problem? 21) A committee of 5 people must be selected from 5 men and 8 women. How many ways can the selection be made if there are at least 3 women on the committee? 2) A nurse has three patients to vist. How many different ways can she make her rounds it she visits each patient only once? 23) How many different ways can four books be arranged on a shelf if they can be selected from nine books?

Explanation / Answer

IIL. Short Answer. (6 points each) 20) When a com puter goes down, there is a 75% chance that it is due to an overload and a 15% chance that it is due to a software problem. There is an 85% chance that it is due to an overload or a software problem. What is the probability that both of these problems are at fault? What is the probability that there is an overload but no software problem? 21) A committee of 5 people must be selected from 5 men and 8 women. How many ways can the selection be made if there are at least 3 women on the committee? 2) A nurse has three patients to vist. How many different ways can she make her rounds it she visits each patient only once? 23) How many different ways can four books be arranged on a shelf if they can be selected from nine books?