Assume that the length of time between charges of a particular cell phone isnormally distributed with a mean of 32 hours and a standard deviation of 3 hours.Find the probability that the cell phone will last between 28 and 38 hours betweencharges.SHOW YOUR WORKParagraphBIU A+ v...!!!lili

Given data: Mean = 32 hours Standard deviation = 3 hours To find: The probability that the cell…

Answered: Assume that the length of time between…

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 migratory habits of zebra in the savanna are normally distributed with a mean of 238 days and a standard deviation of 13 days. Find the probability a single zebra will migrate in les than 220 days.
Assume that adults have IQ scores that are normally distributed with a mean of mu = 100 and a standard deviation sigma = 20. Find the probability that a randomly selected adult has an IQ between 84 and 116 and type an integer or decimal rounded to four decimal places. Make sure to use the positive or negative z score charts attached, in the eBook on MSL, or in a hardcopy of the textbook.
Question 8 > A company produces steel rods. The lengths of the steel rods are normally distributed with a mean of 164.6-cm and a standard deviation of 2.4-cm. For shipment, 27 steel rods are bundled together. Find the probability that the average length of a randomly selected bundle of steel rods is less than 164.2-cm. P(M < 164.2-cm) =| Enter your answer as a number accurate to 4 decimal places. Answers obtained using exact z-scores or z-scores rounded to 3 decimal places are accepted. Question Help: DPost to forum Submit Question tv
Assume that scores on a bone mineral desity test are normally distributed with a mean of 0 and a standard deviation of 1. b. what do the symbols mean^2 and standard deviation ^2 represent.
A recent study of the life span of wireless sound systems found the average to be 3.7 years with a standard deviation of 0.6 years. If a random sample of 32 people who own wireless sound systems is selected, find the probability that the mean lifetime of the sample will be less than 3.4 years. Also, draw and label the distribution to support your work.
You may need to use the appropriate appendix table or technology to answer this question. The state of California has a mean annual rainfall of 22 inches, whereas the state of New York has a mean annual rainfall of 42 inches. Assume that the standard deviation for both states is 4 inches. A sample of 35 years of rainfall for California and a sample of 46 years of rainfall for New York has been taken. (a) Show the probability distribution of the sample mean annual rainfall for California. ^^ inches 39.9 40.6 41.3 42 42.7 43.4 44.1 19.9 20.6 21.3 22 22.7 23.4 24.1 inches -2.1 -1.4 -0.7 0 0.7 1.4 2.1 10 14 18 22 26 part (c), because the sample size is larger part (c), because the population standard deviation is smaller part (b), because the standard error is smaller O part (b), because the population standard deviation is smaller 30 34 inches inches (b) What is the probability that the sample mean is within 1 inch of the population mean for California? (Round your answer to four decimal…
The time for an event for girls in secondary school is known to posses a normal distribution within a mean of 450 seconds and a standard deviation of 50 seconds. Find the probablity that a randomly selected girl in a secondary school will take longer 335 seconds to run the mile
The length of life time of a pesticide spray is normally distributed with a mean life timeis 12 months and standard deviation is 6 months. If this kind of spray is guaranteed for 10 months, find the probability of the sale that requires replacement.
The lifetime of a DVD player is normally distributed with a mean of 8 years and a standard deviation of 38 months. What is the probability that the DVD player that you just bought will last longer than 12 years (144 months) (please round your answer to 4 decimal places)
The life of light bulbs is distributed normaly, The variance of the lifetime is 900 and the mean lifetime of a bulb is 550 hours. Find the probablty of abulb lasting forat least 583 hours. Round your anvwer to four decimal places

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