Among all cars in a junkyard, 10% of them lasted for more than 15 years. If you randomly choose 15 cars from this junkyard, what is the chance that at least two of them aged over 15 years? Continue from part (a), how many of cars (out of 15) do you expect to have that are older than 15 years? Now if you keep on selecting cars, one at a time until you find 3 cars aged 15 or older, what is the chance that you need to select exactly 5 cars?

Q: On average, the number of students that choose to study Arts related subjects at lowa University is…

A:

Q: From experience, an airline knows that only 85% of the passengers booked for a certain flight…

A: Given Information :  From experience, an airline knows that only 85% of the passengers booked for a…

Q: Suppose 56% of the children in a school are girls. If a sample of 428 children is selected, what…

A: The given values are:Proportion of girls in the population (p) = 56% = 0.56Sample size (n) =…

Q: a new surgical procedure in preliminary trials has a probability of success of 80%. if 10 patients…

A: Let X denote the patients are scheduled to go through this procedure and it follows binomial…

Q: Suppose 42 % of the students in a university are baseball players. If a sample of 628 students is…

A:

Q: thirty four percent of us adults have very little confidence in newspapers. You randomly select 8 US…

A: Binomial distribution:The binomial distribution gives the probability of number of successes out of…

Q: In a large population, 59% of the people have been vaccinated. If 5 people are randomly selected,…

A:

Q: There is a 72% chance that I make a stupid mistake when working on problems in class.  What is the…

A: It is an important part of statistics. It is widely used.

Q: There are 18 students, from which 9 people will be selected to be on a panel. If Allen and Joe are 2…

A:

Q: A zoo has a collection of 400 flamingos. 180 of these flamingos are red. One day, a fence blew down…

A: Given : A zoo has a collection of 400 flamingos. 180 of these flamingos are red.

Q: the age of Subject #101 is 71. Divide that age by 10 and put a % on it.  That is the probability of…

A: Hello! As you have posted more than 3 sub parts, we are answering the first 3 sub-parts.  In case…

Q: n the game of chess there are 32 pieces: 2 kings, 2 queens, 4 rooks, 4 bishops, 4 knights, and 16…

A: Game of chess there are 32 pieces: 2 kings, 2 queens, 4 rooks, 4 bishops, 4 knights, and 16 pawns We…

Q: According to a survey of American households, the probability that the residents own 2 cars if…

A: According to the provided data,

Q: A company manufactures calculators in batches of 64 and there is a 4% rate of defects. Find the…

A: Givensample size(n)=64p=0.04Let "x" be the no.of defects in a batchx~Binomial(n=64 ,…

Q: Suppose 55% of the doctors in a hospital are surgeons. If a sample of 496 doctors is selected, what…

A: In hospital ,  There are 55% of doctors are surgeons  Sample size = N = 496  P(sample proportion of…

Q: Suppose 56% of the students in a university are baseball players.   If a sample of 873 students…

A: Step 1: State the given data: population proportion, p = 56% = 0.56sample proportion, p̂ = 55% =…

Q: 42% of US adults have very little confidence in newspapers. You randomly select 10 US adults. Find…

A: Given that, 42% of US adults have very little confidence in newspapers. Sample size, n = 10

Q: A student has a 30% chance of getting a particular professor for a class. What are the odds of…

A: From the provided information, There is 30% chance a student getting a particular professor for a…

Q: Studies show that seven percent of adults live to age of 110. You randomly select five adults. Find…

A: Obtain the probability that at least two of them will live until age of 110. The probability that at…

Q: In a large population, 61% of the people have been vaccinated. If 5 people are randomly selected,…

A: From the given information, Sample size (n) = 5, Probability of success (p) = 0.61.

Q: Suppose 52% of the students in a university are baseball players. If a sample of 436 students is…

A: Given thatThe proportion of the students in a university are baseball players = 0.52Total sample…

Q: Studies show that seven percent of adults live to age of 110. You randomly select five adults. Find…

A:

Q: Suppose 59% of the students in a university are baseball players. If a sample of 632 students is…

A: The given values are:Population proportion (p) = 59% = 0.59Sample size (n) = 632Desired sample…

Q: Suppose you take a 10 question quiz, with 4 options choices, only one is correct. What is the…

A: Given data:   The total numbers of questions are N=10. The numbers of options for a question are…

Q: Suppose 56% of the doctors in a hospital are surgeons. If a sample of 417 doctors is selected,…

A: given:p = population proportion p = 56% = 56/100 = 0.56 n = sample size n = 417 In order to find the…

Q: 80% of teenagers have access to some social media. If you do a random survey of 400 teenagers, what…

A:

Q: 2016, 75.8% of women aged 20-24 had no children. What is the chance that if you wanted to meet a…

A: Given that : In 2016, 75.8% of women aged 20-24 had no children.  What is the chance that if you…

Q: A quiz consists of 10 multiple choice questions, each with 4 answer choices. If a student guesses on…

A: 1)Givensample size(n)=10p=14=0.25           (one correct option from 4 choices)Let "x" be that…

Q: Suppose 41% of the students in a university are baseball players. If a sample of 524 students is…

A: given:p = population proportion p = 41% = 41/100 = 0.41 n = sample size n = 524 In order to find the…

Q: A person conducting telephone surveys must get 3 more completed surveys before their job is…

A: There is 20% chance of completing the phone survey

Q: suppose you roll a pair of dice until you get a double-six. What is the smallest number of times…

A: A die consist of 6 numbers ranges from 1 to 6 in which 1 is the smallest and 6 being the height…

Q: After several thousand game over several years versus a computer opponent, your instructor has won…

A: Given data, p=66.4%=0.664 n=12 P(X=8)=?

Q: Political scientists want to determine the probability of exactly 3 out of the next 5 voters they…

A: