In a survey it was found that 10% of the voters had considered running for the school board.  It was also found that 70% of those who had considered running for the school board voted in the last school board election, but only 50% of those who had not considered running for the school board voted in the last school board election.  If a person from this survey is selected at random and is found to have voted in the last school board election, determine the probability that the person had considered running for the school board.  (Answers may be rounded)     .52     .865     .135     .07     .45     None of these

Q: A random sample of 100 blue-collar employees at a large corporation are surveyed to assess their…

A: Given: Sample size (n) = 100 Probability of success (p) = 0.60 Let X ~ Bin (100, 0.60)

Q: The New York Times reported that 70% of adults know someone who has been exposed to coronavirus.…

A: Givenp=0.70n=20Let "x"be someone who has been exposed…

Q: Based on experience, 60 percent of the people who enter a shoe store make a purchase. In a random…

A: 60 percent of the people who enter a shoe store make a purchase. Hence the probability that a…

Q: In a recent survey, 18 people preferred milk, 29 people preferred coffee, and 13 people preferred…

A: Probability of an event is computed by taking the ratio of number of favourable outcomes to total…

Q: It has been been found that 1 out of 10 visitors to a museum buys something from a gift shop. If we…

A:

Q: In a recent​ survey, it was found that the median income of families in country A was $57,300. What…

A:

Q: In a recent year, about 36% of all infants born in a country were conceived through in-vitro…

A: Define the events, A : infant conceived through IVF B : deliveries resulted in multiple births Given…

Q: In a recent senatorial election, 56% of the voters in a certain district were registered as…

A: Let us denote D=democrats, R=Republicans, I=Independents, V= Vote for the incumbent  Given that…

Q: A survey reports that 53% of college students use Google as their search engine. If 100 students of…

A: From the provided information, Sample size (n) = 100 Probability (p) = 0.53 Now,

Q: A survey on campus revealed that 77% of the students felt that a new attendance policy was unfair.…

A: Given that the probability that the students felt that a new attendance policy was unfair is = 77%…

Q: It has been found that 1 out of every 10 people who visit a local store purchase cigarettes. If we…

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

Q: A sample of automobile dealerships found that 19 % of automobiles sold are silver. If two cars are…

A: Given Information: 0.19% of the automobiles sold are silver. Two cars are selected randomly.

Q: A jury of 12 people is selected randomly from the population. If it is known that approximately half…

A: Solution

Q: In a recent study, 65% of people surveyed indicate chocolate was their favorite flavor of ice cream.…

A: Given,n=11p=0.65Let X =no.of people name their favorite flavor of ice cream.X~Binomial(n=11 ,…

Q: When purchasing boards from a wood supplier, it has been documented that 44% of the boards that are…

A: Given that  Sample size n =300 Population proportion p=44%=0.44

Q: According to the Cable and Telecomm. Association for Marketing, 30% of cable television subscribers…

A: Given : n = 15 p = 0.30 Let X be the number of cable television subscribers.

Q: The air conditioner of 2 out of 10 cars in a car dealership is faulty. For a company that buys 4 of…

A: Giventhe air conditionerof 2 out of 10 carsis…

Q: As part of a promotional campaign, a store is offering a free Fitbit with the purchase of the new…

A: Let A denote the event that iPhone are faulty  Let B denote the event that Fitbits are faulty The…

Q: In a survey of 1100 female adults (18 years of age or older), it was determined that 341 volunteered…

A: There are 341 adult females who volunteered at least once in the past year among 1100 females.   The…

Q: An oil company conducts a geological study that indicates that an exploratory oil well should have a…

A: Obtain the probability that the first strike comes on the second well drilled.   The probability…

Q: According to a study in a medical journal, 202 of a sample of 5,990 middle-aged men had developed…

A: Concept of probability: Probability deals with the likelihood of occurrence of a given event. The…

Q: What is the probability that the consumer is 18-24 years of age, given that they dislike…

A: To find the required probabilities, we will use the following facts P(A | B) = P(A and B)/P(B) P(A…

Q: It is determined that 62% percent of Grade 12s attend school in a particular urban school district.…

A: Given : n = 500 p = 0.62 q = 1 - p  q = 1-0.62 q = 0.38 Here n×p and n×q is greater than 5. hence we…

Q: In a recent​ year, about 38​% of all infants born in a country were conceived through​ in-vitro…

A:

Q: A recent survey reported that 69% of Americans approve of human embryonic stem cell research. If an…

A: Given : Let A be the event of  Americans approve of human embryonic stem cell research. p ( A ) =…

Q: In a recent year, about 36% of all infants born in a country were conceived through in-vitro…

A: 36% of the all infants conceived through IVF. Of the IVF deliveries 26% resulted in multiple births.…

Q: In an experiment to study the relationship of hypertension and smoking habits, the following data…

A: make a table for the given data    non smoker moderate smoker heavy smoker total hypertension…

Q: What is the probability that all three have operated heavy machinery while under the influence of…

A: Let , X be the number of persons say that they have operated heavy machinery while under the…

Q: An insurance company classifies the airplane it insures into class L (low risk)   and class H (high…

A: Given, P(L)=0.7 P(H)=0.3 P(no accident | L)=0.99 P(no accident | H)=0.88 Conditional probability:…

Q: According to a safety engineer, barely 40% of all workers wear safety helmets when eating lunch at…

A:

Q: It is known that in a batch of milk cartons, 30% are underfilled. In a sample of six milk cartons…

A: Given that the batch of milk cartons underfilled is 30% and there are sample of six milk cartons.…

Q: What is the probability of selecting a male who prefers fish? What is the probability of selecting…

A: (a) Here we need to find the probability of selecting a male who prefers fish. Number of males who…

Q: A nylon connector manufacturing plant yields 15 % defective items. If 1000 connectors are randomly…

A: Here, n = 1000, p = 0.15.

Q: A recent survey taken by Adecco of 1,047 employees found that 28% of them would lay off their bosses…

A: Let us denote X=the number of employees who would lay off their bosses. n=sample size= 10…

Q: According to data on the sale of Vehicles in Barbados, it was calculated that men purchase 75% of…

A: From the provided information, Men purchase 75% of vehicles in Babados (p) = 0.75 Sample size (n) =…

Q: In a recent year, about 37% of all infants born in a country were conceived through in-vitro…

A: It is given that , In a recent year. about 37% of all infants born in a country were conceived…

Q: A survey of magazine subscribers showed that 43% rented a car during the past 12 months for business…

A: Let A be the event that a person rented a car during the past 12 months for business reasonsLet B be…

Q: it is estimated that 4800 of the 24,000 voting residents of a town are against a new sales tax. If…

A: Given: Number of residents against a new sales tax (x)= 4800 Total voting residents (N)=24000

Q: A firm offers routine physical examinations as part of a health service program for its employees.…

A:

Q: An oil company conducts a geological study that indicates that an exploratory oil well should have a…

A:

Q: A school survey found that 9 out of 10 students like pizza. If three students are chosen at random…

A: We have to find given probability..

Q: large cable company reports that 42% of its customers subscribe to its Internet service, 32%…

A: Given large cable company reports that 42% of its customers subscribe to its Internet service, 32%…

Q: A recent survey shows that 16% of college students have dogs and 38% have an HBO subscription.…

A: Percentage of student have dogs is 16%. Percentage of student have HBO subscription is 38%.

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

A:

Q: A study was conducted to better understand the television habits of married men and women during…

A:

Q: What is the probability that the consumer is 18-24 years of age, given that he/she dislikes…

A: AS PER POLICY I HAVE CALCULATED 3 SUBPARTS  here use given table and basic probability rule and…

Q: What is the probability that none of the 10 teenagers uses pandora media inc.'s online radio…

A: The problem can be solved using binomial distribution formula.

Q: Empirical evidence suggests that 25% of Florida drivers are uninsured. If four random Florida…

A: The probability of more than one driver is uninsured can be calculated using Binomial distribution:

Q: A safety engineer claims that only 30% of all workers wear safety helmets when they eat lunch at the…

A: The Probability mass function for Binomial distribution is given by                     P(X=x)=ncx…

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.