Based on a​ poll, among adults who regret getting​ tattoos, ​17% say that they were too young when they got their tattoos. Assume that 4 adults who regret getting tattoos are randomly​ selected, and find the indicated probability.  a.Find the probability that none of the selected adults say that they were too young to get tattoos.

Q: The mean number of cars sold by Beachcomber LTD per day is 3. What is the probability that in any…

A:

Q: A recent survey of 1090 U.S. adults selected at random showed that 621 consider the occupation of…

A: Given Information: The number of U.S adults (n) = 1090 The number of occupation of firefighters to…

Q: The CDC estimates that a non-infected person has a 10% chance of contracting mumps from an infected…

A: The random variable X follows geometric distribution with probability 0.10. The geometric…

Q: Suppose a basketball player makes 56.1% of shots and that the probabilty of making each shot is…

A:

Q: Just before a referendum on a school budget, a local newspaper polls 375 voters to predict whether…

A: Given that  The local news paper polls 375  voters to predict whether the budget will pass. Suppose…

Q: The probability that an individual is​ left-handed is 0.130. In a class of 25 ​students, what is…

A:

Q: Based on a smartphone​ survey, assume that 60% of adults with smartphones use them in theaters. In a…

A: The population proportion is 0.60. In a separate survey of 226 adults with​ smartphones, it is found…

Q: A recent survey of 1050 U.S. adults selected at random showed that 625 consider the occupation of…

A: Out of 1050 randomly selected US adults, 625 consider the occupation of firefighter to to have very…

Q: According to government data, 74% of employed women have never been married. Rounding to 4 decimal…

A:

Q: Two cards are drawn without being replaced, from a standard deck of 52 playing cards. Determine, to…

A: From the provided information, Total cards in standard deck = 52 Total spade cards = 13 Total…

Q: The probability of a radar station detecting an enemy plane is 0.55. If 60 stations are in use, what…

A: The binomial distribution is given by,   P(X=x) = Cxn . px . qn-x ; x = 0, 1, 2, ....…

Q: Find the probability distribution for the number of jazz CDs when 4 CDs are selected at random from…

A:

Q: Based on a smartphone​ survey, assume that 48​% of adults with smartphones use them in theaters. In…

A:

Q: Based on a smartphone survey, assume that 56% of adults with smartphones use them in theaters. In a…

A: Given information- We have given a problem of binomial distribution. We have given that 56% of…

Q: the 43​% rate is​ correct, find the probability of getting 93 or fewer smartphone owners who use…

A: Given Data : sample size,n= 261 probability of success,p= 0.43

Q: The mean number of customers arriving at a restaurant during a 15-minute period is 8. Find the…

A: The question is about prob. dist Mean no. of customers arriving at a restaurant ( λ ) = 8

Q: In a recent poll, 13% of all respondents said that they were afraid of heights. Suppose this…

A: Given : In a recent poll, 13% of all respondents said that they were afraid of heights.  p = 0.13

Q: The CDC estimates that a non-infected person has a 10% chance of contracting mumps from an infected…

A: Here, the non-infected persons have a 10% chance of getting mumps from an infected person after 1…

Q: The probability is 1% that an electrical connector that is kept dry fails during the warranty period…

A: Given: A probability of connector that fails while it is dry, P(FD)=0.01 A probability of connector…

Q: A phone company reports that 52 % of its customers subscribe to their high-speed internet service.…

A:

Q: Suppose the probability of purchasing a defective smart phone is 0.04. What is the probability of…

A: Introduction: Denote X as the number of defective smart phones obtained in a purchase of 20 smart…

Q: Based on a smartphone​ survey, assume that 41​% of adults with smartphones use them in theaters. In…

A: See the handwritten solution

Q: Recently, the top web browser had 57.41% of the market. In a random sample of 200 people, what is…

A:

Q: Based on a​ poll, 68​% of Internet users are more careful about personal information when using a…

A: p=0.68  _________________________ P(x≥1) = ?

Q: Based on a smartphone​ survey, assume that   42​% of adults with smartphones use them in theaters.…

A:

Q: In a large population, 59%6 are infected with a certain disease. If you take a random sample of 30,…

A: Given,n=30p=0.59Let x=no.of people infected with certain disease.x~Binomial(n=30 , p=0.59)P(X=x)=Cx…

Q: Based on a​ poll, 68​% of Internet users are more careful about personal information when using a…

A:

Q: A sample of 400 adults were surveyed on their health. 78 of those studied have high blood pressure,…

A: Solution: Given that : Total people = 400No of people that are unwilling to change diet = 94

Q: A recent survey of 1070 U.S. adults selected at random showed that 661 consider the occupation of…

A: Probability:   The ratio of the number of favorable outcomes to certain event and total number of…

Q: If one normal stapler selected randomly from the factories, find the probability when it comes from…

A: here define events and draw probability tree stapler produce by china Factory = C stapler produced…

Q: ) What proportion of students studied more than 35 hours? ) What is the probability that a randomly…

A: Let X denote the time spent studying the week before final exams. Given that X follows N(mean = 24,…

Q: A meteorologist found from the past year’s records that it rained 17% of the days. Based on this…

A: Let X= number of days rained  Number of observation= 15  probability of X= p = 0.17  So, X follows a…

Q: What is the probability of drawing 4 red cards in a row from a standard deck of 52 cards? Express…

A: Deck consists of 52 cards n(S)=52 Deck consists of 26 Red cards n(E)=26 P(4 red cards in a row)=?

Q: In a factory, there were 12 accidents involving machinery in the last six months.  (d) Calculate…

A: Given, In a factory, there were 12 accidents in the last 6 months => 12/6 = 2 accidents per month…

Q: A recent survey of 1070 U.S. adults selected at random showed that 629consider the occupation of…

A: Probability:   The ratio of the number of favorable outcomes to certain event and total number of…

Q: What is the probability of selecting an applicant who has a score of at least 166?

A: Let X denote the GRE quantitative scores. Given that X follows N(mean = medain = 158, SD = 3), then…

Q: A recent survey of 1010 U.S. adults selected at random showed that 649 consider the occupation of…

A: General formula of probability is,  Probability = Number of favorable outcomesTotal outcomes

Q: According to a study 20% of corporate officers are women. Suppose that you select a random sample of…

A: Z-score for proportion:

Q: Based on a smartphone​ survey, assume that 43​% of adults with smartphones use them in theaters. In…

A: Given : p = 0.43 n = 258 x = 110 p^ = 110258 p^ = 0.4264 a. PX≤110 = Pp≤0.4264 PX≤110 =…

Q: of 20%, what is the probability that the cost will be within the estimate?

A: here given  mean =  3  coefficient of variation  =  0.20

Q: The proportion of eligible voters in the next election who will vote for the incumbent is assumed to…

A: Given information- The proportion of eligible voters, p = 0.539 Sample size, n = 430 Since we used…

Q: Public Opinion reported that 5% of Americans are afraid of being alone in a house at night. If a…

A: There is only two possibilities either the selected person is afraid of getting alone as success or…

Q: 5. Mammograms are 80% effective in detecting breast cancer. However, their false positive rate is…

A:

Q: Suppose that a policeman with a radar gun is watching traffic pass on a street where it is the case…

A: Instruction : Use the website www.stattrek.org to calculate probability.    A policeman with a radar…

Q: 65% of Americans drink one coffee a day. With a random sample of 45 Americans, what is the…

A: Solution: Given information: n= 45 Sample of Americans  p= 0.65 Population proportion of Americans…

Q: Find the probability distribution for the number of jazz CDs when 4 CDs are selected at random from…

A: Solution : Given : Total number of CDs = 6 jazz +2 classical+3 rock= 11 Let, X : Number of jazz CDs…

Q: The mean number of car sold by Beachcomber LTD per day is 3.What is the probability that in any…

A: Here Given  Avg number of cars sold =3 Here we can Use poission distribution

Q: The CDC estimates that a non-infected person has a 10% chance of contracting mumps from an infected…

A: Consider a random variable X which represents number of brief encounters before which a non-effected…

Q: An accounting firm has found that 8 out of 12 companies audited contain minor errors in their books.…

A: Given: Number of companies (n) = 12 Number of companies contain minor errors (x) = 8

Q: Suppose a basketball player is an excellent free throw shooter and makes 88% of her free throws…

A: Given that the probability of making a free throw is= 88%= 0.88 Each free throw shots are…