irlShadow
23.09.2019 •
Mathematics
Costco installs automobile tires on a first-come first-serve basis. the total time a customer needs to wait for the installation to be completed follows the normal distribution with a mean time of 106.3 minutes and a standard deviation of 18.5 minutes. what is the probability that a randomly selected customer will wait between 80 and 95 minutes for his or her tires to be installed?
Solved
Show answers
More tips
- H Health and Medicine Tick Traps: How to Remove Them Safely and Effectively...
- S Society and Politics Why are thugs called gopniks ? A fascinating journey through Russian subculture...
- A Animals and plants Want a Perfect Lawn? Learn How to Plant Grass the Right Way...
- A Animals and plants How to Properly Care for a Pet Decorative Rabbit at Home?...
- C Computers and Internet How to Check the Speed of My Internet?...
- H Health and Medicine 10 Ways to Cleanse Your Colon and Improve Your Health...
- W Work and Career How to Write a Resume That Catches the Employer s Attention?...
- C Computers and Internet Е-head: How it Simplifies Life for Users?...
- F Family and Home How to Choose the Best Diapers for Your Baby?...
- F Family and Home Parquet or laminate, which is better?...
Answers on questions: Mathematics
- M Mathematics Simplify this equation, 12x+7x+8y+12^2+y+12=...
- M Mathematics Find the scale factor if an airplane is 87 feet long; 2 inches = 15 feet....
- M Mathematics The price p of an icecream is $3.95 plus $0.85 for each topping t on the ice cream...
- M Mathematics Ineed with 17, i have the rest just need with 17, ....
- M Mathematics Find the solution set x^2-7x-8=0 separate the two values with a comma...
- M Mathematics How would you divide 7.53 into 67.77...
- M Mathematics Find a single expression that represents the perimeter of the triangle....
- M Mathematics In a survey of 215 adult Americans, it was found that the average amount of sleep per night is 7.8 hours with a standard deviation of 1.2 hours. How many adult Americans...
- M Mathematics What is the area of a circle with a radius of 1...
- M Mathematics Let X and Y be the number of hours that a randomly selected person watches movies and sporting events, respectively, during a three-month period. The following information...
Ответ:
μ=106.3 minutes
σ=18.5 minutes
Need to find
P(80<x<95)=>
P(x)=Z((95-μ)/σ)-Z((80-μ)/σ)
=Z(-0.61081)-Z(-1.42162)
=0.27066-0.077568
=0.1931
Therefore probability of customers waiting between 80 and 95 minutes is 0.1931
Ответ: