Customers arrive randomly at a checkout counter at an average rate of 2 every five minutes.   ​a) What is the probability that none arrives in a five minute​ period? The probability that none arrives in a five minute period is?   ​b) What is the probability that more than four arrive in a ten minute​ period? The probability that more than four arrive in a ten minute period is?

Q: 2 When a person takes pennies to a coin counting machine, the average number of pennies inserted is…

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Q: Supposę that 35% of all voters prefer Candidate A. If 8 people are chosen at random for a poll, what…

A: The binomial random variable is defined as the number of success given n number of trials, with the…

Q: The lengths of the plates produced by a cardboard plate manufacturer company are between 260 and 402…

A: Let X be the lengths of the plates produced by a cardboard plate manufacturer company are between…

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Q: Assume that there is a 5​% rate of disk drive failure in a year.   a. If all your computer data is…

A: We have to find given probability.

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A: Given that, Based on data from the Statistical Abstract of the United States, 112th Edition, only…

Q: In a lottery game, a single ball is drawn at random from a container that contains 25 identical…

A: Solution

Q: The student body of a large university consists of 60% female students.  A random sample of 8…

A:

Q: According to a​ survey,61​%of murders committed last year were cleared by arrest or exceptional…

A: Givenp=0.61n=50x~Binomial(n=50,p=0.61)P(X=x)=(nx)×px×(1-p)n-x   ; x=0,1....,n

Q: Determine the number of times a fair coin must be tossed so that the probability of the ratio of the…

A: Let us denote the number of tails as X and the total number of tosses is n. p^=x/n When fair coin…

Q: An advertisment claims that 63.8% of customers are satisfied with a certain bank. What is the…

A: Solution

Q: A machine that manufactures automobile parts produces defective parts 12% of the time. If 10 parts…

A: X~Binomial(n,p)

Q: Find the probability of throwing a sum of 12 at least 6 times in 12 throws of a pair of fair dice.

A: HI, we are supposed to answer one question at a time. Since you have not mentioned which question to…

Q: Each item produced by a certain manufacturer is, independently, of acceptable quality with…

A: * SOLUTION :-  From the given information the calculation is given as below

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Q: cent study of how Americans spend their leisure time surveyed workers employed more than 5 years.…

A: probability of  3 or more weeks of vacation time = 0.2 Putting X = 0 , 1 , 2 into the equation : P…

Q: According to a​ survey, 25​% of residents of a country 25 years old or older had earned at least a​…

A: 25​% of residents of a country 25 years old or older had earned at least a​ bachelor's degree.

Q: It was discovered that 85% of Yale college students finish their course of study during the required…

A: Givenn=32p=0.85x~Binomial(n=32,p=0.85)P(X=x)=Cxn px (1-p)n-x   ; x=0,1....,n

Q: Assume that there is a 10​% rate of disk drive failure in a year.   a. If all your computer data is…

A: Given that,There is a 10% rate of disk drive failure in a yeari.e P(failure disk drive) = 0.1a)…

Q: 12. Supposing that an average of 8 taxis arrive at a station in one hour. Find the probability that…

A: Given,The average no.of taxis arrive at a station in one hour is 8so an average no.of taxis arrive…

Q: A life insurance company has determined that each hour an average of twelve claims is filed in its…

A:

Q: The probability that a driver must stop at any one traffic light coming to Lincoln University is…

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Q: The potential buyer of a particular engine r quires (among other things) that the engine start su…

A: The potential buyer of a particular engine requires that the engine start successfully 10…

Q: According to a​ survey, ​26% of residents of a country 25 years old or older had earned at least a​…

A: We have, p^=26100=0.26 a From the study to have at least 10 people to earn at least bachelor…

Q: a. What is the probability that at least one meteor is found in a one-minute interval? b. Determine…

A: here given   The number of meteors found by a radar system in any 30-second interval under specified…

Q: Assume that 12 jurors are randomly selected from a population (Hidalgo County, Texas) where 80% of…

A: Given that, n=12 and p=80% of people are Mexican-American descents=0.80 Hence, X ~Bn=12, p=0.80 a)…

Q: A personal computer manufacturer buys 37% of its chips from Japan and the rest from the United…

A:

Q: Assume that 4 digits are selected at a random from the set { 1,2,3,4} and are arranged in random…

A: The set of the digits from which the digits are selected randomly and arranged in random order is

Q: A BOX CONTAINS 12 BALLS, INCLUDING 8 RED AND 4 GREEN. TWO BALLS ARE DRAWN RANDOMLY FROM THE BOX ONE…

A: Given,no.of red balls=8no.of green balls=4Total no.of balls=12

Q: On average, number of road accidents occurring at Shahra e Faisal is 5 per day. Find a probability…

A: It is given that, On average, the number of road accidents occurring at Shahra e Faisal is 5 per…

Q: a) The probability of rolling a sum not more than 7 is (Type an integer or a simplified fraction.)

A:

Q: Assume that a machine produces 2% defective items. A random sample of 25 items is chosen. (i) Find…

A: Given Data: The number of items in the sample is: n=25 The probability of defective items is:…

Q: A card is drawn from a well shuffled pack of playing cards. F'ind the probability that it is either…

A:

Q: A personal computer manufacturer buys 36% of its chips from Japan and the rest from the United…

A: Given that P(Japan)=36%=0.36 So, P(USA)=1-0.36=0.64 P(Defective | Japan)=1.6%=0.016 P(Defective |…

Q: A box contains 30 calculators, 7 of which are defective. 7 calculators are selected at random from…

A:

Q: In a survey, 63% of Americans said they own an answering machine. If 19 Americans are selected at…

A: Given that, 63% of Americans said they own an answering machine.  Sample size = 19

Q: The probability that an airplane engine will fail in a transcontinental flight is 0.001. Assuming…

A: It is given that the probability than an engine will fail in a transcontinental flight (p) is 0.001.…

Q: Thế probability that a randomly selected 1-year-old male salamander will live to be 2 years old is…

A: See the hand written solution

Q: a. What is the probability that at least one meteor is found 1.. a one-minute interval? b. Determine…

A: here given number of mentor per 30 seconds  = 1.81  here given scenario follow Poisson Process  for…

Q: uppose that a salesperson succeeds in making a sale with one in every five potential customers…

A: Given : Suppose that a salesperson succeeds in making a sale with one in every five potential…

Q: Suppose that it takes at least 9 votes from a 12-member jury to convict adefendant. Suppose also…

A: The jury can be correct in two ways, 1) if the person is guilty and they find him guilty.  2) if the…

Q: ind the probability that when a couple has five ​children, at least one of them is a girl. ​(Assume…

A: Given that  A couple has 5 children's. Probability of a girl and a boy is equal . P(BOY) = P(GIRL) =…

Q: A personal computer manufacturer buys 36% of its chips from Japan and the rest from the United…

A: Introduction: Suppose X and Y are two events, with respective probabilities P (X) and P (Y). Denote…

Q: Assuming that the probability that an individual changes residence during the year is 0.21. A survey…

A: Let us denote X=the number of individuals who changes residence n=sample size= 5 p=probability of…

Q: If 825 random digits are taken from a random number table: (a) What is the approximate probability…

A: We have to answer basic probability questions.

Q: a. What is the probability that at least one meteor is found in a one-minute interval? b. Determine…

A: here use basic of Poisson distribution  λ = 1.81 mentors per 30 second Interval λ = 1.81 × 6030 =…

Q: The probability of Pakistan to win a KABBADI match against India is 0.9117. Both teams played a…

A:

Q: The probability that a rocket will hit a target is 0.8. Five different rockets of this type are…

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

Q: Assume that when adults with smartphones are randomly selected, 47% use them in meetings or classes.…

A: Here 47% of adults use smartphones on meetings. Also 9 adults are taken at random. This follows a…

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.