Suppose that after 10 years of service, 36% of computers have problems with motherboards (MB), 42% have problems with hard drives (HD), and 18% have problems with both MB and HD. (a) What is the probability that a 10-year old computer have problem with MB or HD. (B) What is the probability that a 10-year old computer still has fully function MB and HD? (C) What is the probability that a 10-year old computer have problems with MB but no problems with HD?

Suppose that after 10 years of service, 36% of computers have problems with motherboards (MB), 42% have problems with hard drives (HD), and 18% have problems with both MB and HD. (a) What is the probability that a 10-year old computer have problem with MB or HD. (B) What is the probability that a 10-year old computer still has fully function MB and HD? (C) What is the probability that a 10-year old computer have problems with MB but no problems with HD?

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...

See similar textbooks

Similar questions

Sickle cell disease is an inherited blood disorder that affects red blood cells. Since it is a recessive disorder, a person inheriting two sickle cell genes will have the disease, whereas a person inheriting only one sickle cell gene will be healthy, but will carry the sickle cell trait. If both parents have the sickle cell trait, and it is equally likely whether a parent passes on the gene for sickle cell trait, determine the probability that an offspring will have the disease. an offspring will have the sickle cell trait. an offspring will have neither sickle cell anemia nor the sickle cell trait.
Only 6% of people has 0-negative blood type. If a local blood drive has 100 donors, what is the probability that at least 10 of the 100 donors has O-negative blood?
A global research study found that the majority of today's working women would prefer a better work-life balance to an increased salary. One of the most important contributors to work-life balance identified by the survey was "flexibility," with 47% of women saying that having a flexible work schedule is either very important or extremely important to their career success. Suppose you select a sample of 100 working women What is the probability that in the sample more than 50% say that having a flexible work schedule is either very important or extremely important to their career success? round to four decimal places
An article was published recently suggesting that persons who exercise regularly can reduce their risk of major clinical events (e.g. diabetes, cardiovascular disease) by up to 50% in some instances. It is believed that only 30% of adult Americans exercise on a regular basis. If eight adult Americans are analyzed, what is the probability that less than half of them exercise regularly? For some reason, I keep coming out with the wrong numbers.
Apparently, depression significantly increases the risk of developing dementia later in lift (BBC News, July 6, 2010). In a recent study it was reported that 22% of those who had depression went on to develop dementia, compared to only 17% of those who did not have depression. Suppose 10% of all people suffer from depression. What is the probability of a person developing dementia? If a person has developed dementia, what is the probability that the person suffered from depression earlier in life?
Data from Office on Smoking and Health, Centers for Disease Control and Prevention, indicate that 35% of adults who did not finish high school, 33% of high school graduates, 22% of adults who completed some college, and 12% of college graduates smoke. Suppose that one individual is selected at random and it is discovered that the individual smokes. Use the probabilities in the following table to calculate the probability that the individual is a college graduate. Education Not a high school graduate 0.0975 High school graduate Some college, no degree Employed Unemployed 0.0080 Associate Degree Bachelor Degree Advanced Degree 0.3108 0.1785 0.0849 0.1959 0.0975 0.0128 0.0062 0.0023 0.0041 0.0015 Probability = | proportion of Hints: This problem has all the information you need, but not in the typical ready-to-use form. The table above can tell you t people with various levels of education in the population. Keep in mind that any degree (Associate, Bachelor, or Advanced) counts as…