In a certain country, the true probability of a baby being a boy is 0.513. Among the next eight randomly selected births in the country, what is the probability that at least one of them is a girl? The probability is. (Round to three decimal places as needed.)

Q: In a large population, 51 % of the people have been vaccinated. If 5 people are randomly selected,…

A:

Q: In a recent study nationwide, it was found that 41% of people own dogs. If you pick two people at…

A: Given that  It was found that 41% of people own dogs. P(Dog) = 41% = 0.41   We know that…

Q: A piece of wire 6 in. long is cut into two pieces at a random point. Whatis the probability that…

A: To find: The probability that both pieces of wire will be at least 1 inch long. Given: The length of…

Q: At a certain international airport, 81% of recent flights have arrived on time. A sample of 12…

A: We have to find given probability.

Q: ​(a) What is the probability that among 12 randomly observed​ individuals, exactly 8 do not cover…

A: Consider a random variable X which represents the number of individual who will not cover his or her…

Q: Many people swimming to St. Martin Islands from Teknaf get lost, of whom 23% are found by trained…

A: The conditional probability of happening of event A when event B already happened, can be expressed…

Q: At a certain car dealership, the probability that a customer purchases an SUV is 0.15. Given that a…

A: Solution: From the given information, the probability that a customer that a customer purchases an…

Q: An article states that false-positives in polygraph tests (tests in which an individual fails even…

A: Let X be a random variable such that X: Number of individuals who pass the test. (i) We know,…

Q: What is the probability that a randomly selected survey participant prefers the NFL? (Round to four…

A: Note : According to our guidelines we are solving only first three sub-parts of a question and the…

Q: The mayor of a town estimates that 65% of the residents in the town favor a raise of taxes to…

A: Given information: p=The probability of residents in the town favor a raise =65%=0.65 400 people…

Q: In a large population, 57 % of the people have been vaccinated. If 5 people are randomly selected,…

A: We have given that  Sample size n= 5 Success of probability p=57%=0.57 X~binomial ( n ,p)

Q: An aircraft seam requires 27 rivets. The seam will have to be reworked if any of these rivets is…

A: Let p be the probability that the rivet is defective

Q: Suppose a birth control pill is 97% effective in preventing pregnancy. (Round your answers to three…

A: Given, birth control pill is 97% effective in preventing pregnancy. (a) 0.97^200 = 0.0023 = 0.002

Q: For a certain horse race, the odds in favor of a certain horse finishing in second placeare given…

A: Since odds in favor of a certain horse finishing in second place are given as 73 to 27 so the number…

Q: The weatherman has been correct on the temperature two out of the past 30 days what is the…

A: From the given data:   Let X be the number of success x=2   Let N be the number of trials n=30

Q: Suppose 90% of kids who visit a doctor have a fever, and 35% kids with a fever have sore throats.…

A: Independent Events:   Any two events A and B are said to independent if the occurrence of the event…

Q: In a certain country, the true probability of a baby being a boy is 0.513. Among the next eight…

A: Solution: Let X be the number of girls and n be the sample number of births. From the given…

Q: In a recent study nationwide, it was found that 51% of people lost their keys in the past year. If…

A:

Q: In the experiment of rolling a die, what is the probability of obtaining an even number given that…

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Q: In a certain country, the true probability of a baby being a boy is 0.514. Among the next seven…

A: Answer - In a certain country,  P(boy)  = 0.514,     n = 7               P(girl)  = 1 - P(boy)  = 1…

Q: Two regular six sided dice are tossed, one at a time. compute the probability that the pips on both…

A: For each die, there are 6 possible outcomes.  So for 2 six-sided dice, there are 62=36 outcomes.…

Q: A bag of marbles contains 6 blue glass marbles, 8 yellow glass marbles, 33 blue stone marbles, and 2…

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

Q: In a certain country, the true probability of a baby being a boy is 0.524. Among the next seven…

A:

Q: The weekly average number of airplane crashes is 1. Whatis the probability that there will be (a) at…

A: Given Data: Let X be the random variable representing weekly average number of airplane crashes X ~…

Q: Find the probability that a 4 is obtained on one of the dice in a throw of two dice, given that the…

A: In throwing of two dice, the total possible outcomes are 36 Let Define some events X : Getting a 4…

Q: An aircraft seam requires 27 rivets. The seam will have to be reworked if any of these rivets is…

A:

Q: In a large population, 68% of the people have been vaccinated. If 5 people are randomly selected,…

A: Givenp=0.68n=5Let x be no.of people vaccinatedx~Binomial(n=5,p=0.68)P(X=x)=(nx)×px×(1-p)n-x   ;…

Q: What is the probability that a randomly selected unicyclist from Corvallis, OR. is not between 30…

A: P(selected is not from 30 to 39) = 1 - P(selected is from 30 to 39

Q: probability that exactly two dog bite victims will arrive?

A: Here use poission distribution for  because rate of victims per days bite by dog is constant for…

Q: An aircraft seam requires 21 rivets. The seam will have to be reworked if any of these rivets is…

A:

Q: A softball pitcher has a 0.431 probability of throwing a strike for each pitch. If the softball…

A:

Q: In country X, 41% of the adult population is nearsighted. If four people from this country are…

A: Solution: Let Y be the number of people are nearsighted and n be the sample number of people. From…

Q: In a certain country, the true probability of a baby being a boy is 0.522. Among the next nine…

A: When the same random experiment is repeated a number of times, it's called repeated trials. The…

Q: In a recent year, there were 2,515,458 deaths, and 787,650 of them were due to cardiovascular…

A: Total number of deaths = 2515458Number of deaths due to cardiovascular disease = 787650…

Q: A pharmacist receives a shipment of 18 bottles of a drug and has 3 of the bottles tested. If 5 of…

A: 20) A pharmacist receives of shipment of 18 bottles of a drug and 3 of the bottles are tested. If 5…

Q: According to a recent report, 67% of Internet searches in a particular month used the Google search…

A:

Q: Two coins are tossed 1000 times and the outcomes are recorded as below Number of heads 2 1 Frequency…

A: a.   The means of the observations is,   Substitute the values in the above equation.

Q: What is the probability that a registered voter voted in the election? The probability that a…

A: The probability of an event is defined as,

Q: In a certain country, the true probability of a baby being a boy is 0.536 Among the next seven…

A: Given that  n=7 P= 1-0.536=0.464

Q: According to a study on teenage shopping behavior, it was found that 75% of female teens regularly…

A: Solution: Let X be the number of teenagers do their shopping in stores and n be the number of…

Q: The probability of an accident among 200 insured in the same age group in an insurance company is p…

A: Given information: Number of individuals who insured in an insurance company, n = 200 The…

Q: An aircraft seam requires 20 rivets. The seam will have to be reworked if any of these rivets is…

A: Given information: Total number of rivets required by an aircraft seam = 20 If any of the above 20…

Q: In a large population, 60% of the people have been vaccinated. If 5 people are randomly selected,…

A: Probability that the people have been vaccinated (p) = 60% = 0.60. Number of people (n) = 5. Let…

Q: A group of people were asked if life exists elsewhere in the galaxy. 247 responded "Yes", and 432…

A:

Q: The auto parts department of an automotive dealership sends out a mean of 5.8 special orders daily.…

A: X=The number of special orders sent out X~Poissonλ=5.8   The probability mass function of Poisson…

Q: In a large population, 53% of the people have been vaccinated. If 4 people are randomly selected,…

A: Given data The Probability of people being vaccinated is, p = 0.53 The No of people randomly…

Q: A certain group of symptom-free women between the ages of 40 and 50 are randomly selected to…

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Q: What is the probability that at least two people in your class (assume a class of 31 students) have…

A: The number of way of birthday for each person out of 365 days is 365P31.The total number of ways of…

Q: In an ESP experiment subjects must predict whether a number randomly generated by a computer will be…

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Q: In a recent survey in a Statistics class, it was determined that only 60% of the students attend…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Confidence Intervals

When we calculate intervals in probability and statistics, it can be simply termed as finding out a confidence interval. The confidence interval is usually calculated from the data set which is observed. The value of the parameter that needs to be calculated is present here only.