Alice has two identical personal computers which she never, Ask an Expert

Statistics

Alice has two identical personal computers, which she never uses at the same time. She uses one PC at a time and the other is a backup. If the one she is currently using fails, she turns it off, calls the PC repairman and turns on the backup PC. The time until either PC fails when it is in use is exponentially distributed with a mean of 50 hours. The time between the moment a PC fails until the repairman comes and finishes repairing it is also exponentially distributed with a mean of 3 hours. What is the probability that Alice is idle because neither PC is operational?

View complete question

Statistics and Probability, Statistics

Category:- Statistics and Probability
Reference No.:- M92656943

Have any Question?Write your Review or question?

Related Questions in Statistics and Probability

Q1 what would the best approach to evaluating whether the

Q1. What would the best approach to evaluating whether the extension to the new line be? would an IRR / NPV approach be adequate? Q2. My understanding is that we would take the sales of the extension of the modern line ( ...

Toy wooden blocks are packaged in bags of 9 one bag

Toy wooden blocks are packaged in bags of 9. One bag contains 6 maple blocks and 3 birch blocks, while a second bag contains 5 maple blocks and 4 birch blocks. One block is drawn from the first bag and placed into the se ...

A student must answer 6 multiple choice questions for a

A student must answer 6 multiple choice questions for a test, but the student did not study well. There are 6 answers per question, but only one is correct. If the student randomly guesses on each questions, what is the ...

The weight of the eggs produced by a certain breed of hen

The weight of the eggs produced by a certain breed of hen has an unknown distribution with a mean of 65 grams and a standard deviation of 5 grams. If you purchase 144 eggs, what is the approximate probability that the av ...

You have just leased a car that has monthly payments of 365

You have just leased a car that has monthly payments of $365 for the next 4 years with the first payment due today. If the APR is 6.84 percent compounded monthly, what is the value of the payments today?

1 a normal distribution 1) A normal distribution has μ = 28 and σ = 5. (a) Find the

1) A normal distribution has μ = 28 and σ = 5. (a) Find the z score corresponding to x = 23. (b) Find the z score corresponding to x = 41. (c) Find the raw score corresponding to z = -3. (d) Find the raw sc ...

On average there are 30 of defects per square foot of

On average, there are 30% of defects per square foot of photographic paper. Assume independence. We examine 100 sheets of photographic paper. Find the probability of 0 defects in one sheet.

A company recently had 26 million shares outstanding

A company recently had 26 million shares outstanding trading at $45/share. The company announces its intention to raise $290M by selling new shares. Studies show losses are 30%of the size of the new issue, so how large a ...

A research a research institute conduct the clinical trials

A research a research institute conduct the clinical trials of a method designed to increase the probability of conceiving a boy. Amount 170 to babies born to parents using the method. 146 for boys. Identify the margin o ...

Breeding records reveal that 1 out of every 8 puppies of a

Breeding records reveal that 1 out of every 8 puppies of a certain Welsh Corgi female are runts. Since these puppies can't be sold for full price, we wish to examine the frequency with which this condition is likely to o ...

4,153,160 Questions Asked
13,132 Experts
2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

Recent Questions

Ask Statistics and Probability Expert