Assume that when adults with smartphones are randomly selected, 56% use them in meetings or classes. If 7 adult smartphone users are randomly selected, find the probability that at least 2 of them use their smartphones in meetings or classes The probability is]. (Round to four decimal places as needed.)

Q: According to a study done by a university student, the probability a randomly selected individual…

A: Introduction: If X ~ Binomial (n, p), then the probability mass function of X is: Here, n is…

Q: Suppose 56 % of politicians are lawyers. If a random sample of size 873 is selected, what is the…

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Q: A shipment of 8 computers contains 4with defects find the probability that a sample of size 4, drawn…

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Q: According to a study done by a university student, the probability a randomly selected individual…

A: Given information Probability that the selected individual will not cover his or her mouth when…

Q: Assume that when adults with smartphones are randomly selected, 58% use them in meetings or classes,…

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

A: Let "X" be the adults who use their smartphone in meetings or classes. I will use excel formula…

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

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Q: Assume that when human resource managers are randomly selected, 54% say job applicants should follow…

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Q: According to astudy, 80% of children nide their purihases fromm their parents in a random Sample of…

A: Given: n=22p=0.80q=1-p=1-0.80=0.20 The probability that at least 21 children hide their purchase is…

Q: Based on a poll, 40% of adults believe in reincarnation. Assume that 8 adults are randomly selected…

A: Given: p=0.4n=8

Q: According to a study done by a university​ student, the probability a randomly selected individual…

A: Given information Probability a randomly selected individual will not cover his or her mouth when…

Q: Assume that when adults with smartphones are randomly selected, 49% use them in meetings or classes.…

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Q: Assume that when adults with smartphones are randomly​ selected, 53​% use them in meetings or…

A: Given that, 53​% use them in meetings or classes P=0.53 N=10

Q: Assume that when adults with smartphones are randomly selected, 59% use them in meetings or classes.…

A: Here, n = 9 and p = 0.59.

Q: According to a study done by a university student, the probability a randomly selected individual…

A: Given information- Let x is a discrete random variable which follows binomial distribution.…

Q: A nationwide survey of college seniors by a university revealed that almost 70% disapprove daily pot…

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Q: Assume that when adults with smartphones are randomly selected, 46% use them in meetings or classes.…

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Q: Assume that when human resource managers are randomly selected, 36% say job applicants should follow…

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Q: In a survey, 63% of Americans said they own an answering machine. If 15 Americans are selected at…

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Q: According to an article, 40% of all cars crossing a toll bridge have a commuter sticker. What is the…

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Q: Assume that the probability of recovering from a brain surgery is 0.9. Considering the next 100…

A: p=0.9 n=100

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

A: Given : Proportion of adults use their smartphones in meeting or classes  (p) = 0.55 9 adults…

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

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Q: Out of 50 students qualifying an exam, 10 were drawn randomly. If 15 out of 50 qualified students…

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

A: Let us assume X= the number of persons who uses smartphones in meetings or classes n= number of…

Q: Assume that when human resource managers are randomly selected, 41% say job applicants should follow…

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Q: According to the American Marketing​ Association, in one​ month, 29% of social​ media users were…

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Q: According to an article, 41% of all cars crossing a toll bridge have a commuter sticker. What is the…

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Q: A factory produces computer chips with a 12% defect rate. In a batch of 10 computer chips. What is…

A: Given that a factory produces computer chips with a 12% defect rate.Sample size, n = 10

Q: 2.)  When adults with smartphones are randomly selected, it was found that 54% of them use their…

A: Given p=0.54, n=20 X : Number of adults who their phones in meetings.

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

A:

Q: Suppose a certain retail store has customers whose ages are normally distributed such that µ=37.5…

A: givenμ=37.5σ=7.6

Q: Sixty percent of all children in a school do not have cavities. The probability, rounded to four…

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Q: Assume that when adults with smartphones are randomly selected, 47% use them in meetings or classes.…

A: Let x follows binomial distribution with parameters n =5 and p = 0.47.   The pdf of binomial…

Q: Assume that when adults with smartphones are randomly selected, 42% use them in meetings or classes.…

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Q: ] Of all 3- to 5-year-old childrek, 56% are enrolled in school. If a sample of 500 such children is…

A: The population proportion is 0.56, sample size is 500. The probability that the sample proportion of…

Q: According to a study done by a university student, the probability a randomly selected individual…

A: Solution

Q: According to a study done by a university​ student, the probability a randomly selected individual…

A: HI, we are supposed to answer three subparts at a time. Since you have not mentioned which subpart…

Q: According to a study done by a university student, the probability a randomly selected individual…

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Q: A survey of all medium- and large-sized corporations showed that 65% of them offer retirement plans…

A: The normal distribution is the most useful theoretical distribution for continuous variables.…

Q: Assume that when adults with smartphones are randomly selected, 47% use them in meetings or classes.…

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Q: Based on a poll , among adults who regret getting tattoos , 25 % say that they were too young when…

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

A: It is given that n = 9 and p = 0.36.

Q: A flashlight has 41 batteries, 5 of which are defective. If 3 are selected at random without…

A: Obtain the probability that all are non-defective. The probability that all are non-defective is…

Q: According to the statistics, 22% of cars in the city were at least 12 years old in 2004. Assume…

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

A: From the provided information, Sample size (n) = 6 37% of adults use smartphones in meetings or…

Q: The IRS indicates that 90% of all tax returns are filed electronically. Assume that figure is…

A: Let p be the proportion of all tax returns are filed electronically. Given that p = 0.9 Sample size…

Q: If 825 random digits are taken from a random number table: (a) What is the approximate probability…

A: We have to answer basic probability questions.

Q: Suppose that one third of the new buildings in Centra City are in violation of the building code. If…

A: Let us denote X=the number of building that violate of the building coden=sample size=5p=probability…

Q: I roll an ordinary, six-sided die eight times in a row, what is the probability that at least six of…

A: It is given that a six-sided die eight times in rolled. Hence, the probability of getting the value…