In a recent year, an author wrote 156 checks. Use the Poisson distribution to find the probability that, on a randomly selected day, he wrote at least one check. ..... The probability is (Round to three decimal places as needed.)

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A: Formula :  Binomial distribution is given by

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A: Binomial distribution: A discrete r.v. X taking values 0,1,2,3, …., n is said to follow a binomial…

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A: Given, P(Adults using smart phones in meetings or classes)= p = 54% = 0.54 Sample size n = 5 exactly…

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A: Given information is expressed in the following table:

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A: Consider X is a random variable that follows binomial distribution with the sample size, n equals to…

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Q: Assume that when adults with smartphones are randomly selected, 39% use them in meetings or classes.…

A: Obtain the probability that exactly 18 of them use their smart phones in meetings or classes.…

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A: From the given information, Sample size (n) = 5, Probability of success (p) = 0.61.

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Q: Assume that when adults with smartphones are randomly selected, 41% use them in meetings or classes.…

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Q: In an election, suppose that 60% of voters support the incumbent candidate. If we poll 105 of these…

A: The objective of this question is to find the mean and standard deviation of the proportion of…

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A:

Q: The probability that a police officer is hiding behind a billboard next to the highway is 0.06. The…

A: Conditional probability:   Let A and B be two events, then the condition probability for event A,…

Q: Assume that when adults with smartphones are randomly selected, 36% use them in meetings or classes.…

A: We have to find given probability..

Q: hat is the probability that at least one of the students got a score? Round to four decimal place.

A: Let , X be the number of students got a score Here , X→B(n=3 , p=0.33) The probability mass function…

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A: A random variable follows the binomial distribution if it satisfies the following conditions. There…

Q: Assume that when adults with smartphones are randomly​ selected, 56​% use them in meetings or…

A: Let "X" be the adults who use their smartphones in meetings or classes.

Q: Assume that when adults with smartphones are randomly selected, 55% use them in meetings or classes.…

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Q: 27% of all college students major in STEM (Science, Technology, Engineering, and Math). If 49…

A: Solution

Q: Suppose that on any particular sales call, a certain saleswoman has a 18% chance of making a sale.…

A: Let X be a random variable. Given that p = 0.18  and.  x = 14

Q: The probability that a person living in a certain city owns a dog is estimated to be 0.5. Find the…

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Q: Suppose that on the average, 8 students enrolled in a small liberal arts college have their…

A: Let us consider X as the number of students enrolled in a small liberal arts college have their…

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Q: Suppose that on the average, 7 students enrolled in a small liberal arts college have their…

A: Let X=no.of enrolled in a small liberal arts college have their automobiles stolen during the…

Q: (a) Find the probability that a randomly selected student is male, given that the student received a…

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A: Givenp=42%=0.42sample size(n)=20x~Binomial(n=20,p=0.42)P(X=x)=(nx)×px×(1-p)n-x     ; x=0,1,...,n

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Q: Suppose we are flipping an unfair coin until we get a head with the probability of obtaining a tail…

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Q: Suppose that a telemarketer has a 12% chance of making a sale on any given call. If the telemarketer…

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Q: Assume that when adults with smartphones are randomly selected, 48% use them in meetings or classes.…

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Q: Assume that when silts with smartphones are randomly selected 37% use them in meetings or class. IF…

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Q: Suppose that 25% of all students on campus wear glasses. If two students are chosen at random, what…

A: Given,25% of all students on campus wear glassessample size(n)=2

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A: Probability measures the chance of occurrence one favourable events out of all possible events.…

Q: Assume that when adults with smartphones are randomly selected, 39% use them in meetings or classes.…

A: probability mass function of B.D is = f ( k ) = ( n  k ) p^k * ( 1- p) ^ n-kwhere       k = number…

Q: iphones are randomly selected, 3476 use them meetings or classes. I To aduk smarphone users are…

A: Let X denotes the number of adults who use their smartphones in meetings or classes. Given that 10…

Q: If the probability of an event not occurring is 0.55, what is the probability the event will occur?…

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