Assume that when adults with smartphones are randomly selected, 48% use them in meetings or classes. If 10 adult smartphone users are randomly selected, find the probability that at least 5 of them use their smartphones classes. meetings or The probability is. (Round to four decimal places as needed.)

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Q: Thirty percent of a population of consumers is reputed to prefer a particular brand, say Brand A, of…

A: If each trial has only two possible outcomes, that is, success and failure, the probabilities of…

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A: a) Given information: p=70%=0.70 n=sample size=14 Let X be the number of adults hold to view follows…

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Q: According to the National Highway Traffic Safety Administration, 83% of Americans used seat belts…

A: In this question it has given that,Probability (that Americans use seat belt belts regularly) =…

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A: Conditional Probability: Let A and B be two events with P(A) > 0. Then the conditional…

Q: Based on a​ poll, among adults who regret getting​ tattoos, 23% say that they were too young when…

A: Solution: Let X be the number of adults say that they were too young when they got their tattoos and…

Q: Suppose that 18% of people that enter a car dealership buy a car that day from that dealer. What is…

A: According to central limit theorem, the sampling distribution of sample proportion follows the…

Q: Assume that the probability of a being bor sample of 1168 volunteers. Find the most likely number of…

A: Solution

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Q: A national survey found that 42​% of adults ages​ 25-29 had only a cell phone and no landline.…

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Q: A group of people were asked if life exists elsewhere in the galaxy. 318 responded "yes", and 477…

A: Number of people who responded "yes" = 318Number of people who responded "no" = 477Total number of…

Q: A group of people were asked if life exists elsewhere in the galaxy. 336 responded "Yes", and 400…

A: The number of people believe in existence of life elsewhere in the galaxy is 336. The number of…

Q: The National Coffee Association reports that among individuals in the 45 to 55 age, 70% drink…

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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: Find the indicated probability. Round to three decimal places. 33% of the computer science majors…

A: Givenp=0.33sample size(n)=10x~Binomial(n=10 , p=0.33)P(X=x)=(nx)×px×(1-p)n-x    ; x=0,1,...,n

Q: If 200 Honda Accords are randomly selected, approximately how many of them will have the braking…

A: Given data,μ=45σ=0.5

Q: A national survey found that 42​% of adults ages​ 25-29 had only a cell phone and no landline.…

A: Given,n=5p=0.42X=no.of adults use cell phoneX~Binomial (n=5 , p=0.42)P(X=x)=5x 0.42x 1-0.425-x ;…

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A: Binomial distribution: Consider a random experiment involving n independent trials, such that the…

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: three out of four university students under 25 years old have eaten eggs for breakfast. If a random…

A: Solution: Given data: Probability, P = 3/4  = 0.75 Sample size (n) = 20 To find : the probability…

Q: Five percent of all credit card holders eventually become delinquent. The probability, rounded to…

A: Given, p = 5% = 0.05 q = 1 - p = 1 - 0.05 = 0.95 n = 19

Q: The average number of calls received by a switchboard in a 30-minute period is 18.

A: It is given that the average number of call received by a switchboard in a 30 minutes periods is 18.…

Q: A telephone switch board in a firm receives on a average 90 calls per hour. Find the probability…

A: X~ Poisson (lemda=90) Pd.f. of X is given by, p(x)= e-lemda(lemda)x/X!

Q: Suppose that a policeman with a radar gun is watching traffic pass on a street where it is the case…

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Q: A television commercial claims that 1 out of 5 of "today's marriages" begins as an online…

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Q: (A) Find the probability that at least 1 ball was red, given that the first ball was replaced before…

A: A box contains 4 red and 2 white balls.  (A)  Find the probability that at least 1 ball was red,…

Q: Based on a poll , among adults who regret getting tattoos , 30 % say that the too young when they…

A: Given, p=30% = 0.3 n=5 q=1-p=1-0.3=0.7

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Q: Find the probability of being dealt a red ace, a two, then a three, in this order, without replacing…

A: P(E) = Number of favourable outcomesTotal number of possible outcomes Total number of possible…

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

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

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Q: In the current campaign period, suppose a random person is selected, based on previous survey, there…

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Q: in a large population 68% of the people have been vaccinated,if 4 people were selected, what is the…

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

A: The following information has been given: The sample size is n=9 The probability of success is…

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

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Q: The proportion of eligible voters in the next election who will vote for the incumbent is assumed to…

A: Given information- The proportion of eligible voters, p = 0.539 Sample size, n = 430 Since we used…

Q: Suppose that a policeman with a radar gun is watching traffic pass on a street where it is the case…

A: Instruction : Use the website www.stattrek.org to calculate probability.    A policeman with a radar…

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

A: Let X be the random variable from binomial distribution with probability (p) = 48% = 0.48 and sample…

Q: In a large population, 64 % of the people have been vaccinated. If 3 people are randomly selected,…

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Q: In a large population, 68 % of the people have been vaccinated. If 3 people are randomly selected,…

A: Given that, 68% of the people have been vaccinated. Probability, p = 68% = 0.68 Sample size, n = 3

Q: The average number of field mice per acre in a 5-acre wheat field is estimated to be 10. Find the…

A: Given that  The average number of field mice per acre in a 5-acre wheat field is estimated to be 10.…

Q: Assume that the average number of births in a hospital is 3 births per shift. a) What is the…

A: Given, Assume that the average number of births in a hospital is 3 births per shift. This follows…

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Q: A sample of 4 different calculators is randomly selected from a group containing 20 that are…

A: Given,no.of defective calculators=20no.of non defective calculators=10total no.of calculators=30

Q: In a mobile network company, one in every seven subscribers is in a conversation with other…

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Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.