MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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A fair coin is flipped 100 times . Find the
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- Find the mean variance and standard deviation for the number of heads when 10 coins are tossed.arrow_forwardThe playing life of a Sunshine radio has a Normal distribution with a mean of 600 hours and a standard deviation of 100 hours. What percent of the time would you expect a radio to last no more than 600 hours?arrow_forwardBrenda has collected data to find that the finishing times for cyclists in a race has a normal distribution. What is the probability that a randomly selected race participant had a finishing time of greater than 154 minutes if the mean is 143 minutes and the standard deviation is 11 minutes? Use the empirical rule.Provide the final answer as a percent.arrow_forward
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- Americans spend an average 12.2 minutes in the shower. If the standard deviation of the variable is 2 minutes and the variable is normally distributed, find the probability that the mean time of a sample of 15 Americans who shower will be less than 12 minutes.arrow_forwardThe distribution for the time a patient of a medical center spends waiting for an appointment is normal with mean of 35 minutes and standard deviation of 12 minutes. What wait times represents the middle 55% of all appointments?arrow_forwardThe song-length of tunes in the Big Hair playlist of a Statistics professor's mp3-player varies from song to song. This variation can be modeled by the Normal distribution, with a mean song-length of u = 4.3 minutes and a standard deviation of o 0.65 minutes. Note that a song that has a length of 4.5 minutes is a song that lasts for 4 minutes and 30 seconds. = While listening to a song, the professor decides to shuffle the playlist, which means the mp3-player is to randomly pick a song within this particular playlist, and play this next. If using/working with z-values, use three decimals. (a) What is the probability that the next song to be played is between 3.6 and 4.6 minutes long? Answer to four decimals. (b) What proportion of all the songs in this playlist are longer than 5 minutes? Use four decimals in your answer. (c) 10% of all the songs in this playlist are at most how long, in minutes? Enter your answer to two decimals, and keep your answer consistent with how the song length…arrow_forward
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