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According to a recent survey, 84% of students say that they do not get enough sleep. Assume the survey medis the conditions of a binomial experiment. Round your answers to three decimal places In a random survey of 27 students, find the probsbility that exactly 24 of them will say that they do not get enough sleep: In a random survey of 27 sudents, find the probability that more than 24 of them will say that they do not get enough sleep:
American Airlines' flights from Denver to Seattle are on time 80% of the time. Suppese twelve flights are randomly seldsied, and the number on-time flights is recorded. 1. The probability that at least four flights are on time is: 2. The probability that at most seven flights are on time is 3. The probability that exactly eight flights are on time is
A large fast-food restaurant is having a promotional game where game pieces can be found on various products. Customers can win food of cash prizes. According to the company, the probability of winning a prize (large or small) with any eligible purchase is 0.128. Consider your next 28 purchases that produce a game piece. Calculate the following: Roind your answers to at least three decimal places. a) What is the probability that you win 3 prizes? b) What is the probability that you win more than 5 prizes? c) What is the probability that you win between 3 and 5 (inclusive) prizes? d) What is the probabilify that you win 2 prizes or fewer?
A loral county has an unemployment rate of 7.2%. A random sample of 15 employable people are picked at ransom from the county and are asked if they are employed. The distribution is a binomial. Round answers to 4 decimal places. a) Find the probability that exactly 4 in the sample are unemployed. b) Find the probability that there are fewer than 4 in the sample are unemployed. c) Find the probability that there are more than 1 in the sample are unemployed. d) Find the probabbility that there are at most 4 in the sample are unemployed.