A laptop company claims up to 11.5 hours of wireless web usage for its newest laptop battery life. However, reviews on this laptopshows many complaints about low battery life. A survey on battery life reported by customers shows that it follows a normaldistribution with mean 10.5 hours and standard deviation 36 minutes. What is the probability that the battery life is less than 9.5hours? Round your answer to four decimal places (e.g. 98.7654).Answer is Blank 1

Given: Laptop battery life = X X follows Normal distribution Mean of X = 10.5 hours Standard…

Answered: A laptop company claims up to 11.5…

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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The mean or average number of days for someone age 12 and older in the US to smoke weed (if they smoke it at all) is 117.72 days per year. The standard deviation is 131.60. What was the NORMAL number of days per year to smoke weed?
A mechanic sells a brand of automobile tire that has a life expectancy that is normally distributed, with a mean life of 35,000 miles and a standard deviation of 2100 miles. He wants to give a guarantee for free replacement of tires that don't wear well. How should he word his guarantee if he is willing to replace approximately 10% of the tires? Click to view page 1 of the table. Click to view page 2 of the table. Tires that wear out by miles will be replaced free of charge. (Round to the nearest mile as needed.)
Cody took his first physics exam and scored an 80. The population mean for this exam is 70, and the standard deviation is 5. What is the probability of selecting a person with a score greater than Cody’s?
On May 16, 2017, Verdun Hayes of Somerset, Great Britain set a new Guinness World Record: the oldest ever skydiver. The World War II veteran, who fought on the beaches of Normandy in 1944, set a new record when he skydived at age 101. Suppose the ages of all skydivers follow a normal distribution with mean 47.8 years and standard deviation 12.6 years. Based on this distribution, how old must a skydiver be to fall in the top 2.62% of the distribution? 29.931 75.669 75.033 72.242 Previous C 4 Address Next
A particular fruit's weights are normally distributed, with a mean of 334 grams and a standard deviation of 6 grams. The heaviest 11% of fruits weigh more than how many grams? Give your answer to the nearest gram. Check Answer
The NJ Department of Health has reported the average life span of NJ residents is 81 years. If the standard deviation is σ = 4 years, what is the probability of a person living to at least 92 years of age?
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I’m taking probability and statistics class. Please get this correct as I’m using this to study. Thank you so much
A biologist found the wing span of a group of MONARY butterflies to be normally distributed with a mean of 53.7 mm and a standard deviation of 2.5 mm. What percent of the butterflies have the following wingspan round to one Decimal decimal place what percent is less than 48.5 mm What percent is between 50 and 56 mm
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