Ten husband and wife couples are seated at random in a circle. Find the expected number of husbands who end up sitting next to their wives. (One method is to use indicator variables, each equal to 1 when the corresponding husband is sitting next to his wife.)

Q: Assume that 12 jurors are randomly selected from a population in which 76% of the people are…

A: X p(x) 0 0+ 1 0+ 2 0+ 3 0.0003 4 0.0018 5 0.0092 6 0.034 7 0.0924 8 0.1828 9…

Q: In a certain state, pickup trucks account for 26% of the state's registered vehicles. If 300…

A: Let p denote the proportion of pickup trucks. Given that p = 0.26 Let X denotes number of pickup…

Q: A poll is given, showing 20% are in favor of a new building project. If 10 people are chosen at…

A: Given data, p=20%=0.20 n=10 P(X=5)=?

Q: A jury pool consist of 27 people, 14 men, and 13 women. Compute the probability that a randomly…

A: Given data, Jury pool consists of 27 people. Men= 14 Women= 13   P(12 male)=?

Q: A container includes six components from supplier A, seven from supplier B, and eight from supplier…

A: Given that, A container includes six components from supplier A, seven from supplier B, and eight…

Q: In a random group of 5 individuals, what is the probability that at least two of them have the same…

A: We have given that the group of 5 individuals.

Q: Airlines report that 45% of its flights are on time.  In a random sample of 80 flights, what is the…

A: Given, Let A be the event of success that Airlines report of its flights are on time Random sample…

Q: Compute the probability of randomly drawing five cards from a deck and getting exactly one Queen?…

A: There are 52 cards in a standard deck of cards.  We can draw any 5 cards in 52C5=2598960 ways…

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: 25 .A poll is given, showing 40% are in favor of a new building project. If 9 people are chosen at…

A: Here 40% are in favor of the new building project. A sample of 9 people is taken. We need to find…

Q: Based on a​ poll, 40​% of adults believe in reincarnation. Assume that 5 adults are randomly​…

A: Given that :  40​% of adults believe in reincarnation. i.e. p = 40% = 0.40 Sample size (n)  X…

Q: A coin is biased such that a tail is six times as likely to occur as a head. Find the expected…

A: We have to find mean of no. of heads toseed.

Q: A poll is given, showing 70% are in favor of a new building project. If 8 people are chosen at…

A: According to the given information, we have Probability, p = 70% = 0.70 Sample size, n = 8

Q: In an exam, 15% got an “B” mark, 10% get a “A”, and the other 75% get below that. Six students from…

A: Percentage of student got B marks is 15%. Percentage of student got A marks is 10%. Percentage of…

Q: In a certain state, pickup trucks account for 25% of the state's registered vehicles. If 200…

A: Given problem Given that   In a certain state, pickup trucks account for 25% of the state's…

Q: A poll is given, showing 20% are in favor of a new building project. If 6 people are chosen at…

A: ( 1 ) Given n =6,p=0.2,p(x=1) =? ( 2) Given n = 8 , p=0.05 , p( x=4 ) =?

Q: In a family with 2 children, excluding multiple births and assuming that a boy is as likely as a…

A: Let B=Boy and G=Girl Possible number of outcomes for two children are {BB, BG, GB, GG} Let x= number…

Q: A poll is given, showing 40% are in favor of a new building project. If 9 people are chosen at…

A:

Q: A poll is given, showing 20% are in favor of a new building project. If 8 people are chosen at…

A:

Q: A poll is given, showing 60% are in favor of a new building project. If 10 people are chosen at…

A:

Q: An urn contains four balls numbered 3, 5, 8, and 10. If a person selects a set of two balls at…

A: An urn contains four balls numbered 3, 5, 8, and 10 and a person selects a set of two balls at…

Q: A poll is given, showing 40% are in favor of a new building project. If 10 people are chosen at…

A: We have to find probability..

Q: A poll is given, showing 80% are in favor of a new building project. If 8 people are chosen at…

A: Givenp=0.80n=8x~Binomial(n=8,p=0.80)P(X=x)=(nx)×(p)x×(1-p)n-x   ; x=0,1,....,n

Q: A poll is given, showing 70% are in favor of a new building project. If 8 people are chosen at…

A:

Q: A poll is given, showing 55% are in favor of a new building project. If 8 people are chosen at…

A: Given,n=8p=0.55X=no.of people favor the new building projectX~Binomial (n=8 , p=0.55)P(X=x)=nx px…

Q: A poll is given, showing 35% are in favor of a new building project. If 8 people are chosen at…

A:

Q: If 11% of the population has a certain illness , what is the expected number of ill people in a…

A:

Q: An urn contains four balls numbered 1, 3, 4, and 6. If a person selects a set of two balls at…

A: Given that there are 4 balls.A person selects two balls. So total number of outcomes=4C2=6So the…

Q: A poll is given, showing 35% are in favor of a new building project. If 8 people are chosen at…

A: Given: Sample size (n) =8 Probability of success (p) = 0.35 Formula: Let "X" be the poll showing in…

Q: In a certain state, pickup trucks account for 28% of the state's registered vehicles. If 100…

A: From the given information, n = 100 and p is 0.28.

Q: A poll is given, showing 25% are in favor of a new building project. If 10 people are chosen at…

A: Let "X" be the people who are in favor of the new building.

Q: Assume that the drawer contains 8 coins: 5 quarters, 2 dimes, and 1 nickels. One coin is randomly…

A: The probability of selecting quarter is 5/8The probability of selecting dime is 2/8The probability…

Q: Approximately 10% of all people are left-handed.  If you select a group of 27 people, what is the…

A: Given: Sample size (n) = 27 p (left-handed) = 10% = 0.10 Let "X" be the people who are left handed.

Q: A highway camera films cars daily as they pass by. Over a two-month period, the camera shows that…

A:

Q: Suppose that three microchips in a production run of forty are defective. A sample of five is to be…

A:

Q: A poll is given, showing 35% are in favor of a new building project. If 9 people are chosen at…

A:

Q: A manufacturing company performs a​ quality-control analysis on the ceramic tile it produces.…

A:

Q: A church is holding a raffle and sells 500 tickets for $2 each. If the church awards one $100 first…

A: There is one $100 prize  So the probability of winning $100 is = 1/500    there are two $50 prize So…

Q: A population consists of 15 items, 10 of which are acceptable. In a sample of four items, what is…

A:

Q: according to popular belief, 80% of adults enjoy drinking beer. choose a group of 4 adults at…

A: The probability distribution explains the all the possible outcome in the experiment and the…

Q: A poll is given, showing 80% are in favor of a new building project. If 9 people are chosen at…

A:

Q: Suppose that a box contains five red balls and ten blue balls. If seven balls are selected at random…

A: As per company term and conditions we can answer only one question please  raise another ticket for…

Q: A poll is given, showing 20% are in favor of a new building project. If 10 people are chosen at…

A: Solution: Let X be the number of people favor the new building project and n be the sample number of…

Q: In a review class of 80 students, 70 passed the board exam. If a student is selected at random, what…

A:

Q: FInd the expected number of infected ducks in a sample of 5 ducks if the probability of an infected…

A: Given dataNo of ducks = 5Probability of an infected duck p = 0.3Using Binomial theoremProbability of…

Q: are selected at random, what is the probability that the majority of the committee members are…

A: here  from given information, total 20 member  12 are teachers and 8 are students here 5 members are…

Q: A manufacturing company performs a​ quality-control analysis on the ceramic tile it produces.…

A:

Q: A poll is given, showing 60% are in favor of a new building project. If 6 people are chosen at…

A: Given,n=6p=0.6X=no.of people favor the new building projectsX~Binomial(n=6 , p=0.6)P(X=x)=Cxn…

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.