What is the probability choosing someone who tested positive

Q: At an inspection line, several motors are inspected. It is known that defects between motors are not…

A: Solution-: Given : λ=5 We find, (a) P[the first defective motor is the fifth motor that you…

Q: The coach of a running team thinks that 45% of athletes can run a mile in under 7 minutes. A simple…

A: Given problem Given that   The coach of a running team thinks that 45% of athletes can run a mile…

Q: The probability that a person with certain symptoms has hepatitis is 0.7. The blood test used to…

A: Given that P  ( H ) = 0.7, P (+ve/H ) = 0.95 , P ( + ve / H' ) = 0.05 Find P( H/+ve ) = ?

Q: If a student is selected at random from Ms. Avery's homeroom, what is the probability that the…

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Q: In the United States, voters who are neither Democrat nor Republican are called Independent. It is…

A: Let "X" be the voters who are independent. I will use excel formula "=BINOM.DIST(x, n, p, FALSE)"…

Q: A survey reported in USA Today indicates that 65% of small business owners favor drug testing for…

A: The probability of small business owners favoring drug testing for their employees is, The sample…

Q: A university claims that 70% of its athletes earn a degree.  Suppose that the records of 100…

A: 70% of the athletes earn a degree. 100 athletes are chosen at random. Define the Random Variable, X…

Q: According to the U.S. Coast Guard, sixty-five percent of boating accidents occur in light wind…

A: From the provided information, Sample size (n) = 20 Sixty five percent of boating accidents occur in…

Q: It is reported that 60% of people are non-smokers. A non-smoker has a 10% chance of infected by the…

A: Given information, P(non-smoker)=60%=0.60 P(smoker)=1-0.60=0.40 P(infected| non-smoker)=0.10…

Q: The probability that a family owns a washing machine is 0.68 that it owns a DVD player is 0.81, and…

A: GivenP(family owns a washing machine)=0.68P(family owns a DVD player)=0.81P(family owns both washing…

Q: Assume that the critic finds that 25 percent of the movies have positive comments about the plot, 40…

A: The event A is defined as the movies have positive comments about the plot, event B is defined as…

Q: The average monthly grocery bill for an individual is normally distributed with a mean of $85 and a…

A: Solution: Let X be the average monthly grocery bill for an individual is normally distributed with…

Q: The Statistical Bulletin reports that 22.5% of the households in the country are inhabited by one…

A: See below hand written answer: hgyukj

Q: 16 of the 200 digital video recorders​ (DVRs) in an inventory are known to be defective. What is the…

A: Given that, 16 of the 200 digital video recorders​  (DVRs) in an inventory are known to be…

Q: A study showed that ​69.7% of occupants involved in a fatal car crash wore seat belts. Of those in a…

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Q: Last week, a flower delivery business conducted a survey on customer happiness. They found that 51%…

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Q: A market research organization surveyed 102 people and found that 73 of them would like more…

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Q: A study of 180 randomly selected American Airlines flights showed that 68 arrived late. What is the…

A: No. of American flights =180 No. of american flights arrived late=68

Q: According to a survey, 36.7% of people who visit Disney World have children under 18 in their…

A: A: People who visit Disney World have children under 18 in their household   B:  Household with…

Q: Privacy is a concern for many users of the internet. One survey showed that 62.5% of internet users…

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Q: A recent survey found that 62% of the households surveyed had internet access,68% had cable TV, and…

A: Given, A recent surveyA=households survyed has internet accessB= has cable TVPA=62%  =0.62…

Q: Last Fall Semester, 36% of freshmen who applied for football season tickets did not receive tickets…

A: Obtain the probability that more than 40% of those sampled did not receive tickets for all home…

Q: Migraine medication was administered to patients in that 2% experienced weight gain as a side…

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Q: manufacturer of aspirin claims that the proportion of headache sufferers who get relief with their…

A: Given data,Probability of success is p=63.8%=0.638If n=430P(X<58.4%)=?

Q: According to the Federal Insurance Agency statistics, the proportion of teenage drivers between the…

A: Standard normal score: If random variable X follows normal distribution then the standard normal Z…

Q: Suppose the prevalence of type II diabetes in a community is 36%. Researchers want to sample 16…

A: Suppose the prevalence of type II diabetes in a community is 36%. Researchers want to sample 16…

Q: 12% of baseball players tested positive for drugs at some point this season. Of these players, 5%…

A: Let P1=Instance that player was tested positive this season. P2=Instance that player was tested…

Q: A survey of athletes at a high school is conducted, and the following facts are discovered: 25% of…

A: Solution: Let A be the event that the athlete is football player and B be the event that the athlete…

Q: Supposed that Stephen is the quality control supervisor for a food distribution company.  A shipment…

A: We have given that  Success of probability p =13%=0.13 Number of trials n=10 X~binomial ( n ,p)

Q: The national center for health statistics has found that there is a 5.01% chance that an american…

A: There is 5.01% chance that an American citizen will die from an accident.

Q: Information was collected on those who attended the opening of a new movie. The analysis found that…

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Q: In a recent survey, it was found that the median income of families in country A was $57,700. What…

A: Median: Median is the middle value of the observations in the distribution when the data values are…