Assume that there is a 11% rate of disk drive failure in a year. a. If...
Assume that there is a 11% rate of disk drive failure in a year. a. If all your computer data is stored on a hard disk drive with a copy stored on a second hard disk drive, what is the probability that during a year, you can avoid catastrophe with at least one working drive? b. If copies of all your computer data are stored on three three independent hard disk drives, what is the probability that during a year, you can avoid catastrophe with at least one working drive? a. With two hard disk drives, the probability that catastrophe can be avoided is
Homework Answers
a) With two hard disk drives,
P(Avoid catastrophe)
= P(Atleast one working)
= 1 - P(Both fails)
= 1 - (0.11)2
= 0.9879
b) With three hard disk drives,
= P(Atleast one working)
= 1 - P(All three fails)
= 1 - (0.11)3
= 0.998669
Note - I have written the exact answers. Please round off the probabilities as per the question demands.
Add Answer to:
Assume that there is a 11% rate of disk drive failure in a
year. a. If...
Assume that there is a 7% rate of disk drive failure in a year a all...
Assume that there is a 7% rate of disk drive failure in a year a all your computer data is stored on a hard disk drive with a copy stored on a second hard disk dtrive, what is the probablay that duning a year you can avoid catastrophe with at s on workling drive b. t copies of all your computer data are stored on three independent hard disk drives, whest is the probabilty hat during a year you can...
PowerDrive, Inc. produces a hard disk drive that sells for $175 per unit. The cost of...
PowerDrive, Inc. produces a hard disk drive that sells for $175 per unit. The cost of producing 25,000 drives in the prior year was: Direct material $625,000 Direct labor 375,000 Variable overhead 125,000 Fixed overhead 1,500,000 Total cost $2,625,000 At the start of the current year, the company received an order for 3,000 drives from a computer company in China. Management of PowerDrive has mixed feelings about the order. On the one hand they welcome the order because they currently...
PowerDrive, Inc. produces a hard disk drive that sells for $175 per unit. The cost of...
PowerDrive, Inc. produces a hard disk drive that sells for $175 per unit. The cost of producing 25,000 drives in the prior year was: Direct material $625,000 Direct labor 375,000 Variable overhead 125,000 Fixed overhead 1,500,000 Total cost $2,625,000 At the start of the current year, the company received an order for 3,400 drives from a computer company in China. Management of PowerDrive has mixed feelings about the order. On the one hand they welcome the order because they currently...
5. A certain model of laptop computer has hardware failures of three different types: hard drive...
5. A certain model of laptop computer has hardware failures of three different types: hard drive failure, battery failure, and other hardware failure. It was found that: 54% 43% 30% 18% 10% 1% of failures did not involve the battery at all of failures did not involve the hard drive at all of failures were of only the battery of failures involved a failure of hardware other than a battery or hard drive of failures involved neither the battery nor...
When you start your computer, the hard disk begins to spin. It takes [Number 6.35] seconds...
When you start your computer, the hard disk begins to spin. It takes [Number 6.35] seconds of constant angular acceleration to reach full speed, at which time the computer can begin to access it. If you wanted the disk drive to reach full speed in only [Number 3.34] seconds, the disk drive's motor would have to exert more torque on it during the starting process. Compare the second torque to the original torque.
Consuelo Chua, Inc., is a disk drive manufacturer in need of an aggregate plan for July...
Consuelo Chua, Inc., is a disk drive manufacturer in need of an aggregate plan for July through December. The company has gathered the following data given in the tables. There are 8 hours of production per day. You manage a consulting firm down the street from Consuelo Chua, Inc., and to get your foot in the door, you have told Mr. Chua that you can do a better job at aggregate planning than his current staff. He said, "Fine. You...
Consuelo Chua, Inc., is a disk drive manufacturer in need of an aggregate plan for July...
Consuelo Chua, Inc., is a disk drive manufacturer in need of an aggregate plan for July through December. The company has gathered the following data given in the tables. There are 8 hours of production per day. You manage a consulting firm down the street from Consuelo Chua, Inc., and to get your foot in the door, you have told Mr. Chua that you can do a better job at aggregate planning than his current staff. He said, "Fine. You...
Lab 9- Hard Disk Partitions Activity 1-Creating Hard Drive Partitions 1. Whst is a hard drive...
Lab 9- Hard Disk Partitions Activity 1-Creating Hard Drive Partitions 1. Whst is a hard drive partitbon and wfat W'indowa tol can you use ta create ce 2 Why are partitions uneful? Include examples froen the perspective of everyday users, power usens, and computer manufacturers . Why do we want to leave some available space in the (C) volume in strep 77 What are the file system types available in the Windows partition management tool? 5. What is the difference...
hi can you please help me solve this problem?..thank you.. Figure Q4(d) shows the Hard Disk...
hi can you please help me solve this problem?..thank
you..
Figure Q4(d) shows the Hard Disk Drive Read/Write structure. 8-bits data is currently (d) being stored from location 0 to 7, and the data reading and writing is done magnetically Reference: Write Head Read Head NWrite Write 1 (1) (0) N Figure Q4(d) (i) Using the reference write (1) and write (0), explain the process of writing 110011002 into location 0 to 7. [5 marks] (ii) Using the positive edge...
A fault-tolerant system that processes transactions for nancial services rm uses three separate computers. If operating...
A fault-tolerant system that processes transactions for nancial services rm uses three separate computers. If operating computer fails, one of the two spares can be immediately switched online. After the second computer fails, the last computer can be immediately switched online. Assume that the probability of a failure during any transaction is 10?8 and that the transctions can be considered to be independent events. (a) What is the mean number of transactions before all computers have failed? (b) What is...
Assume that there is a 7% rate of disk drive failure in a year a all your computer data is stored on a hard disk drive with a copy stored on a second hard disk dtrive, what is the probablay that duning a year you can avoid catastrophe with at s on workling drive b. t copies of all your computer data are stored on three independent hard disk drives, whest is the probabilty hat during a year you can...
5. A certain model of laptop computer has hardware failures of three different types: hard drive failure, battery failure, and other hardware failure. It was found that: 54% 43% 30% 18% 10% 1% of failures did not involve the battery at all of failures did not involve the hard drive at all of failures were of only the battery of failures involved a failure of hardware other than a battery or hard drive of failures involved neither the battery nor...
Lab 9- Hard Disk Partitions Activity 1-Creating Hard Drive Partitions 1. Whst is a hard drive partitbon and wfat W'indowa tol can you use ta create ce 2 Why are partitions uneful? Include examples froen the perspective of everyday users, power usens, and computer manufacturers . Why do we want to leave some available space in the (C) volume in strep 77 What are the file system types available in the Windows partition management tool? 5. What is the difference...
hi can you please help me solve this problem?..thank
you..
Figure Q4(d) shows the Hard Disk Drive Read/Write structure. 8-bits data is currently (d) being stored from location 0 to 7, and the data reading and writing is done magnetically Reference: Write Head Read Head NWrite Write 1 (1) (0) N Figure Q4(d) (i) Using the reference write (1) and write (0), explain the process of writing 110011002 into location 0 to 7. [5 marks] (ii) Using the positive edge...
Most questions answered within 3 hours.
-
You capture data by having 8 people fill in 30 small dots on a
piece of...
asked 1 hour ago -
What are the z-values such that 70% of the area lies in the
middle of the...
asked 3 hours ago -
You borrow $29,500 to purchase a brand new car. The interest
rate is 6%, and the...
asked 3 hours ago -
The amount of time it takes an asteroid, whose average distance
from the Sun is 4.70...
asked 3 hours ago -
A 0.289 kg mass slides on a frictionless floor with a speed of
1.34 m/s. The...
asked 3 hours ago -
15.A box contains five red balls, three green balls, and two
yellow balls. Suppose you select...
asked 6 hours ago -
Assume you are given the following for Stackelberg industries:
Return on Assets (ROA) = 8%
Debt...
asked 5 hours ago -
an engineer proposes to use mmWave in 5G network to
increase data rate.
What are the...
asked 5 hours ago -
Explain the idea behind using SEMIJOIN in distributed
query processing.
asked 5 hours ago -
why
is context important in selecting and applying guidelines and
principles for interface design?
illustrate your...
asked 5 hours ago -
In a certain board game, a player rolls two fair six-sided dice
until the player rolls...
asked 6 hours ago -
You are going to deposit $3,200 in an account that pays .58
percent interest compounded quarterly....
asked 5 hours ago