The probability that a randomly selected 40-year-old female will live to be 41 years old is 0.988 according to study. What is the probability that none of two randomly selected 40-year old females will live to be 41 years old?

Q: the probability that more than 17 of the students smoke?

A: Given : n=75 , p=0.277 , q=1-p=1-0.277=0.723 Here  np=75*0.277=20.7750>5 and…

Q: According to a recent study, 14% of U.S. drivers are uninsured. A random sample of seven drivers was…

A:

Q: If the probability that an individual moves outside of their county of residence in a given year is…

A: Given information- We have given a problem of binomial distribution. We have given that the…

Q: It has been been found that 1 out of 10 visitors to a museum buys something from a gift shop. If we…

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Q: In a sample of 50 people, 21 had type O blood, 22 had type A blood, 5 had type B blood, and 2 had…

A:

Q: The median age of residents in a certain town is 33 years. If a survey of 100 randomly sampled…

A: In the given data since the median value is 33 years, we can say that the probability of any…

Q: (a) One prominent physician claims that 70% of those with lung cancer are chain smokers. If his…

A: Given information: P(Chain smokers) = 0.70 n = 12 Determine the required probability using the…

Q: The average number of people who die in a month from a rare disease in a city is 4. What is the…

A: The average number of people who die in a month from a rare disease in a city is 4.

Q: The incidence of tuberculosis in an industry is such that the workers have a 20% chance of suffering…

A:

Q: Of the 6 people who have taken their seats at a seminar, 2 have black hair. What is the experimental…

A: From the given information, 6 people who have taken their seats at a seminar, 2 have black hair.…

Q: A nationwide survey of 17,000 seniors by the University of Michigan reveals that almost 70%…

A: Given p=0.7 n=18

Q: In a Survey, 85% of the people interviewed were unaware that maintaining a healthy weight could…

A: Givenp=0.85n=20Let "x" be the no.of people are unware that maintaining a healthy weightcould reduce…

Q: According to a national​ study, 32​% of taxpayers used computer software to do their taxes for a…

A: From the given information, 32​% of taxpayers used computer software to do their taxes for a certain…

Q: Suppose the first generation Apple iPad has 5% chance of being defective. What is the probability…

A: From the provided information, Apple iPad has 5% chance of being defective that is p = 0.05 Sample…

Q: A study shows that 15% of adult males don’t wash their hands in a public restroom. We take a random…

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Q: Suppose that 50% of adult Australians believe that Australia should apply to host the next rugby…

A: Given: p=0.5 n=150

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

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Q: According to a study, 20% of corporate officers are women. Suppose that you select a random sample…

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Q: In a police report submitted by the Cordillera Police Station, poverty is the main reason mentioned…

A: Solution: Let X be the number of crimes resulted from poverty as the main reason for committing…

Q: The probability that an UofM student is from the Greater Toronto Area is only .25. What is the…

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Q: According to a 2018 survey, 74 percent of employed young adults expect to bring work on a vacation…

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Q: A survey by the American Automobile Association (AAA) revealed 60 percent of its members made…

A: Let p be the probability that a person had made airline reservation last year. Then, p=0.6.

Q: According to the American Dental Association, 60% of all dentists use nitrous oxide in their…

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Q: A nationwide survey of 17,000 college seniors by the University of Michigan revealed that almost 70%…

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Q: The CDC estimates that a non-infected person has a 10% chance of contracting mumps from an infected…

A:

Q: A recent study has shown that 28% of 18-34 year olds check their Facebook/Instagram feeds before…

A: Given information Probability of checking Instagram p = 0.28 Sample size n = 150 Let x be the random…

Q: An average student is known to have a chance of 50% in answering a TRUE or FALSE question correctly.…

A: Obtain the probability that an average student will have at least 1 correct answer.   The…

Q: what is the probability more than half of the sampled students are working full time?

A: Assume sixty percent of all NKU students work full time. If a random sample of 70 NKUstudents is…

Q: According to data from an LG Smartphone survey, 54% of adults with smartphones use them during…

A: Obtain the probability that exactly 30 have used their smart phones during a meeting or in class.…

Q: In a survey of Canadian nurses who worked more than 45 hours per week, it was found that 321 nurses…

A: Given Data n(nurse under 35 age)=321 n( nurse between 35 to 55 age)=403   Total=321+403=724

Q: A survey was conducted to determine the proportion of Grade 11 students who engage in under-age…

A: We have given that p = 0.70 n = 100 We have to calculate  P(x> 0.65)

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

A: c) From the given information, the probability a randomly selected individual will not cover his or…

Q: A meteorologist found from the past year’s records that it rained 17% of the days. Based on this…

A: Let X= number of days rained  Number of observation= 15  probability of X= p = 0.17  So, X follows a…

Q: A recent survey found that 86% of first-year college students were involved in volunteer work at…

A: The provided information are:Proportion of first-year college students were involved in volunteer…

Q: A random sample of 270 homes was taken from a large population of older homes to estimate the…

A: Given: A random sample of 270 homes was taken from a large population of older homes to estimate the…

Q: According to a study 20% of corporate officers are women. Suppose that you select a random sample of…

A: Z-score for proportion:

Q: 33 live births per 1,000 per year result in twins, what is the probability of getting more than…

A: The true percentage of live births that result in twins will be: p  =331000×100    =3.3%

Q: Public Opinion reported that 5% of Americans are afraid of being alone in a house at night. If a…

A: There is only two possibilities either the selected person is afraid of getting alone as success or…

Q: What is the probability of selecting one person at random who is Female and Married?

A:

Q: A 2016 survey suggests that 90% of college students have posted a profile on Facebook 78% use…

A: Let,  A=the event of using Facebook B=the event of using Instagram   Given that: P(A)=90%=0.90…

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

A: Let's assume,  p= probability that seniors by a university disapprove daily pot smoking  n = number…

Q: 65% of Americans drink one coffee a day. With a random sample of 45 Americans, what is the…

A: Solution: Given information: n= 45 Sample of Americans  p= 0.65 Population proportion of Americans…

Q: The Principal reported that 30% of the students in first year have a failing grade. If this is true,…

A: Given: The Principal reported that 30% of the students in first year have a failing grade. Let X be…

Q: Pinterest claims that 0.3789 of their app users are men. In a sample of 93 randomly chosen app…

A: Given information: Proportion of app users of Pinterest that are men p=0.3789 Number of randomly…

Q: Suppose a certain study reported that 27.7% of high school students smoke. Random samples are…

A: Solution: Given data: p = 0.277 Population size (N) = 632 students Sample size (n) = 60 To find: The…

Q: What is the probability that a non-infected person contracts mumps after 10 brief encounters with…

A: Since , P(contracting mumps from an infected person from even a brief encounter)=0.10 Our aim is to…

Q: A safety engineer claims that only 30% of all workers wear safety helmets when they eat lunch at the…

A: The Probability mass function for Binomial distribution is given by                     P(X=x)=ncx…

Q: Based on a study by Dr. P. Sorita at Indiana University, approximately 12% of people have green…

A: It is given that n =0.12 and n = 650.

Q: A recent survey found that 70% of all adults over 50 wear glasses for driving. In a random sample of…

A: Let the random variable X be the number of wear glasses. X takes values 0,1,2,.....,10 . p =…

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.