The QMplus-gremlins are mischievous creatures that cause computer problems. After careful research you observe that the number ofgremlins active each day is a random variable with Bin(3, 0.5) distribution. If no gremlins are active, the probability of QMplus failureis 0.15; if one gremlin is active the probability of QMplus failure is 0.3; if two or more gremlins are active the probability of QMplusfailure is 0.5. You conclude that the total probability of QMplus failure on a given day is(to two decimal places). Assumingthere is a failure, the probability no gremlins are active is(again to two decimal places).

Answered: Image /qna-images/answer/0160536f-42ac-4d92-a49f-49499f62aeb9.jpg

Answered: The QMplus-gremlins are mischievous…

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...

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Similar questions

The expected value of a discrete random variable always corresponds to an actual outcome that may occur.
After careful research you observe that the number of hackers active on each day is a random variable Bin(3,0.5) distribution. If no hackers are active, the probability of the website failure is 0.15; If one hacker is active the probability of the website failure is 0.3; if two or more hackers are active the probability of the website failure is 0.5. You conclude that the total probability of website failure on a given day is two decimal place). Assuming there is a failure, the probability no hackers are active is (to (to two decimal places).
A vaccine has a 90% probability of being effective in preventing a certain disease. The probability of getting the disease if a person is not vaccinated is 50%. In a certain geographic region, 25% of the people get vaccinated. If a person is selected at random, what is the probability that he or she will contract the disease?
All human blood can be "ABO-typed" as one of O, A, B, or AB, but the distribution of the types varies a bit among groups of people. Here is the distribution of blood types for a randomly chosen person in a country. Blood type A National probability 0.43 0.12 AB ? (a) What is the national probability of type AB blood? O 0.41 (b) Maria has type B blood. She can safely receive blood transfusions from people with blood types O and B. What is the probability that a randomly chosen person from this country can donate blood to Maria?
It has been reported that 5% of all cars on the highway are traveling at speeds in excess of 70mph. If the speeds of four random auromobiles are measured via radar what is the probability that at least one car is going over 70 mph
If you have a sample of 100 patients at a hospital and 20 of them have the flu, what is the probability Of randomly selecting 3 patients in a row who have the flue?
A dowser has correctly located water for a well 1 out of 2 times in Jones County. In Jones County, someone who is just guessing has a 40% chance of locating water for a well. Does this sample provide sufficient evidence that the dowser can locate water and is not just guessing?
Do question 2
The mean of a random variable will be negative if all possible values of the random variable negative. O True O False

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