A laptop company claims up to 10.4 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 9.5 hours and standard deviation 27 minutes.(a) What is the probability that the battery life is at least 10.4 hours?Round your answer to four decimal places (e.g. 98.7654).P =i(b) What is the probability that the battery life is less than 8.6 hours?Round your answer to four decimal places (e.g. 98.7654).P =i(c) What is the time of use that is exceeded with probability 0.9?Round your answer to two decimal places (e.g. 98.76).The time of use that is exceeded with probability 0.9 is ih

Let , X→N(μ=9.5 hours , σ=27 minutes) Now , μ=9.5 hours =9.5*60=570 minutes and σ=27 minutes Here ,…

Answered: What is the probability that the…

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 Smith family was one of the first to come to the U.S. They had 7 children. Assuming that the probability of a child being a girl is .5, find the probability that the Smith family had:at least 5 girls?Is it correct answer 0.2266?at most 5 girls? Is it correct answer 0.9375?
Use the basic probability principle to solve the following problem. Express each probability as a fraction reduced to lowest terms. A 12-sided die is rolled. The set of equally-likely outcomes is (1,2,3,4,5,6,7,8,9,10,11,12}. Find the probability of rolling a 6. The probability of rolling a 6 is (Type an integer or a simplified fraction.)
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Certain app allows you to order from different types of cuisine. According with the app's records 23% of the orders are to an American food restaurant, 38% to an Asian food restaurant, 17% to a Mexican food restaurant, 6% to a Dessert place, and the rest are to other types of restaurants. Assume that incoming orders are independent of each other.
A certain tennis player makes a successful first serve 78% of the time. Assume that each serve is independent of the others. If she serves 9times, what's the probability she gets: Part 1 a) The probability that she gets all 9 serves in is _______________ (Round to three decimal places as needed.). Part 2 b) The probability she gets exactly 4 serves in is _______________ (Round to three decimal places as needed.) Part 3 c) The probability she gets at least 7 serves in is ______________________ (Round to three decimal places as needed.) Part 4 d) The probability that there are no more than 6 serves in is __________ (Round to three decimal places as needed.)
You are planning a three-day trip to Seattle, Washington, in October. Use the fact that on each day, it could either be sunny orrainy, and that each day is equally likely to be sunny or rainy to answer the following question. What is the probability that it is sunny ONE day? Give answer in integer form or decimal. Do not round. I already tried submitting 0.875 but it says it's wrong.
A company prices its tornado insurance using the following assumptions: • In any calendar year, there can be at most one tornado. • In any calendar year, the probability of a tornado is 0.13. • The number of tornadoes in any calendar year is independent of the number of tornados in any other calendar year. Using the company's assumptions, calculate the probability that there are fewer than 3 tornadoes in a 25- year period. Round your answer to 4 decimals. Show your work. Show what you entered into your calculator.
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PLEASE EXPLAIN EACH STEP FOR CALCULATION OF THE PROBLEM USING A TI-84 CALCULATORFrom experience, you know that 83% of the desks in the schools have gum stuck beneath them. In a random sample of 14 desks. n = 14 p= 0.83 a) Compute the probability that all of them have gum underneath. Compute the probability that 10 or less desks have gum.

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