A class in advanced physics is comprised of 20 juniors, 30 seniors and 10 graduate students. The final grades showed that 5 of the juniors, 12 of the seniors, and 6 of the graduate students received an A for the course. If a student from this class is selected and is found to have earned an A, what is the probability that he or she is a junior? answer in 4 decimal place

Q: In a recent survey of 25 voters, 17 favor a new city regulation and 8 oppose it. What is the…

A: In a recent survey of 25 voters, 17 favor a new city regulation and 8 oppose it. We have to find the…

Q: a class of 25 statistics​ students, 7 of the 25 are graduate students. If four students are being…

A:

Q: A sign on the pumps at a gas station encourages customers to have their oil checked, and claims that…

A: Let X be the number of cars needs to have oil added. Given: n=84 and p=1/5=0.2 Hence, X ~ B (n=84,…

Q: Suppose that last month, WestJet flights arrived on time 74% of the time and you were on 3 of those…

A: Given: Number of flights (n)=3 Probability of success (p) = 0.74 Consider X be the random variable…

Q: A marketing research survey shows that approximately 80% of the car owners surveyed indicated that…

A: (a)   Obtain the probability that all five indicate that their next car would be either a compact or…

Q: Data collected by a large company indicates that 74% of its employees are married, 64% of its…

A:

Q: The American Red Cross says that about 45% of the U.S. population has Type O blood, 40% Type A, 11%…

A: Let X represent the random variable   n=7 p=0.4   X~ Binomial (7, 0.4)

Q: A class in advanced physics is composed of 10 juniors, 30 seniors, and 10 graduate students. The…

A: Given data:     The numbers of juniors in the class are: n(J)=10. The numbers of seniors in the…

Q: The American Red Cross says that about 45% of the US population has Type O blood, 40% has Type A,…

A: Given information- P (type O) = 0.45 P (type A) = 0.40 P (type AB) = 0.11 P (type B) = 0.04 We have…

Q: A marketing research survey shows that approximately 80 percent of car owners surveyed indicated…

A: Introduction :-  Here we have to find various probabilities. Given, A marketing research survey…

Q: A CLASS IN ADVANCED PHYSICS IS COMPRISED OF 10 JUNIORS, 30 SENIORS AND 10 GRADUATE STUDENTS. THE…

A:

Q: The American Red Cross says that about 45% of the US population has Type O blood, 40% has Type A,…

A: Introduction: It is known that there are 4 types of human blood according to the ABO blood grouping…

Q: Wells were dug in a plain, and it was found that 15% of the water from the dug wells was not…

A: Solution: Given: Number of new wells: n = 10 It was found that 15% of the water from the dug wells…

Q: Suppose that a fast food restaurant can expect two customers every 3 minutes, on average. What is…

A: Using poisson distribution Find p( x<=4)=?

Q: In a large introductory statistics lecture​ hall, the professor reports that 5656​% of the…

A: Introduction:Denote p1, p2 and p3 denote the probabilities that a student has never taken a calculus…

Q: Q: If 5% of the people are carriers of a certain disease and 10% of them are young, what is the…

A: Given: % of people that are carriers = 5% % of people that are young = 10%

Q: The American Red Cross says that about 45% of the US population has Type O blood, 40% has Type A,…

A: The American Red cross says that about 45% of the US population has Type O blood. That is, PType O…

Q: In a survey of 96 baseball fans in NYC, 46 were fans of the Mets, 63 were fans of the Yankees and 30…

A: Probability quantifies the chances of happening an event. The probability values always lie in the…

Q: USA Today reported that approximately 25% of all state prison inmates released on parole become…

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Q: Refer to the table which summarizes the results of testing 100 subjects for a certain disease.…

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Q: Of all the students who take the CPA examination, one-fourth have a Master’s degree and the…

A: It is given that one-fourth have a Master’s degree and the remainder have Bachelor’s degrees. Half…

Q: According to a journal article on ancient Japanese history, 1 in every 5 samurai became masterless…

A: Given that 1 in every 5 samurai became masterless (Ronin). Therefore probability of becoming Ronin…

Q: A sign on the pumps at a gas station encourages customers to have their oil checked, and claims that…

A: Given : p = 15 q = 45 Apply Binomial distribution P(X=x) = Cxn px qn-x

Q: At a certain university, 5% of men are over six feet tall and 2% of women are over 6 feet tall.…

A: Probability deals with the chances of happening an event. Its value always fall between 0 and 1. An…

Q: At a certain umiversity, 4% of men are over six feet tall and 1% of women are over 6 fee tall.…

A: Given P(A l B) =0.01 P(B) =0.6 P(A l B') =0.04

Q: A class of 20 juniors, 30 seniors, and 10 graduate students makes up an advanced physics class.…

A:

Q: A new drug cures 65% of the patients who take it. If it is given to 14 patients, what is the…

A:

Q: It has been found that 2 out of every 10 people who visit a local store purchase milk. If we…

A: Given: n=13 p=210=0.2

Q: A sign on the pumps at a gas station encourages customers to have their oil checked, and claims that…

A: x: Car needs oil. X ~ Bin(n,p) Where p = 1/5 = 0.20 P(X) = nCx * px * ( 1 - p)n-x

Q: In a recent survey of 25 voters, 17 favor a new city regulation and 8 oppose it. What is the…

A: Explanation of the answer is as follows

Q: A city has two daily newspapers, A and B. A survey of 100 residents of the city shows that 35 people…

A: Given, A survey of 100 residents of the city shows that 35 people subscribe to A, 60 subscribe to B…

Q: From past experience, a company has found that in a carton of transistors, 92% contain no defective…

A: x p(x) 0 0.92   1 0.03   2 0.03   3 0.02

Q: A neighborhood at San Juan city have figurine inside their house, the probability that there is a…

A:

Q: At a certain car dealership, 20% of customers who bought a new vehicle bought an SUV, and 3% of them…

A: It is given that, the proportion of customers who bought a new vehicle bought an SUV is 0.20 and the…

Q: It is known that approximately 90% of the population is right-handed. In a sample of 100 people,…

A:

Q: In the St. Petersburg Community College, 30% of the men and 20% of the women are studying…

A: Let M=a student is menW=a student is womenE=a student is studying…

Q: At a certain high school, calculus is a very popular subject. The class consists of 60% seniors, 30%…

A: Given that The class consists The seniors           =  60%  =  0.60  The juniors            =    30%…

Q: There is a 0.39 probability that John will purchase a new car, a 0.73 probability that Mary will…

A:

Q: In a certain Country, 47 percent of the population are on a strict diet. In a sample of 20…

A: It's binomial probability distribution

Q: According to a journal article on ancient Japanese history, 1 in every 5 samurai became masterless…

A: Given that 1 in every 5 became masterless during feudal age of japan. p=15p=0.20 n=15P(Atleast…

Q: On average cleo catches a fish on 40% of the times that he casts his fishing line. If he casts his…

A: We have to find the probability that he will catch exactly 9 fish....

Q: According to reports, 30% of American adults have chronic insomnia. If 3 American adults are chosen…

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Q: A statistics of a machine factory indicates that for every 1000 it produces there is one reject…

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Q: Approximately 12% of the U.S. population is composed of African-Americans. Assuming that the same…

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Q: A coin is tossed eight times. What is the probability that the outcome will be eight heads, given…

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Q: In a group of 25 people, a person tells a rumor to a second person, who in turn tells it to a third…

A: Given information: It is given that, in a group of 25 people, a person tells a rumor to a second…

Q: An unreliable company produces a large shipment of blenders where 13% have a defective motor, and…

A: It is given that, 13% of blenders have a defective motor, 25% have a defective electrical cord and…

Q: A drag racer has two parachutes, a main and a backup, that are designed to bring the vehicle to a…

A: Consider an event A defines that main parachute deploys and event B defines that backup parachute…

Q: Of all the students who take the CPA examination, one-fourth have a Master’s degree and the…

A: The probability of any two events A and B is given below:

Q: According to a journal article on ancient Japanese history, 1 in every 5 samurai became masterless…

A: The probability samurai becomes masterless is p=15 The number of samples are n =20 The Probability…