Answered: A particular telephone number is used…

A particular telephone number is used to receive both voice calls and fax messages. Suppose that 20% of the incoming calls involve fax messages, and consider a sample of 20 incoming calls.

Holt Mcdougal Larson Pre-algebra: Student Edition 2012

1st Edition

ISBN:9780547587776

Author:HOLT MCDOUGAL

Publisher:HOLT MCDOUGAL

Chapter11: Data Analysis And Probability

Section11.8: Probabilities Of Disjoint And Overlapping Events

Problem 2C

See similar textbooks

Related questions

Q: A company makes Citi bikes. 95% (i.e., 0.95) pass final inspection. Suppose that 5 bikes are…

A: Given , n=5 p=0.95X~Binomial n=5 , p=0.95PX=x=ncxpx1-pn-x ;…

Q: In a town, 52% of the residents voted for Candidate C. If we randomly survey 3 residents, what is…

Q: (4) Of 50 fitness buffs, 25 like bicycling, 35 like jogging, and 15 like bicycling and jogging. a.…

Q: Historically, the final exam for an introductory statistics course has had a 75% pass rate. Suppose…

A: From the provided information,p = 0.75n = 250

Q: A Food Marketing Institute found that 51% of households spend more than $125 a week on groceries.…

Q: The coach of a running team thinks that 45% of athletes can run a mile in under 7 minutes. A simple…

A: Given problem Given that The coach of a running team thinks that 45% of athletes can run a mile…

Q: It was revealed that in New York 8% of all automobiles in the state did not pass inspection. Of the…

A: 1. Suppose a random variable X, defines that the number of automobiles in the state that did not…

Q: Suppose there is a 11.7% probability that a randomly selected person aged 20 years or older is a…

Q: Suppose the fraction of undergraduate students who smoke is 15% and the fraction of graduate…

A: The events are determined as follows:S: The student is a smoker.G: The student is a graduate…

Q: n urn has 11 balls that are identical except that 7 are white and 4 are red. A sample of 8 is…

A: given data, 7- white balls 4- red balls11- total balls a sample of 8 is selected randomly without…

Q: Types UI would be involved in at least one collision during any one-year period. The results of the…

A: Given that a driver has been involved in at least one collision in the past year, the probability…

Q: 2. An Italian web site claims that 80% of all downloads consist of books by foreign authors.…

Q: A survey showed that 73% of adults need correction ( eyeglasses, contacts, surgery,etc.) for their…

A: Let us denote X= the number of persons who need correction for their eyesight. n= number of trials =…

Q: About 10% of the general population is left-handed. However, about 25% of baseball players are…

A: The provided information are: Probability of success (p) = 0.25 Number of trials (n) = 30 Consider,…

Q: ontribute to household expenses. 23% of them contribute. a. What is the probability that at…

A: NOTE: As per the guidelines, we are supposed to solve the first three sub parts only. Given:…

Q: In Hawaii shark attacks are very rare. Furthermore, about 55% of all shark attacks are serious, but…

A: Here r is the binomial distribution with n = 5 and p = 0.55. Let r be the number of nonfatal attacks…

Q: Candidate A is running for president of the student government at a large university. The…

A: given data n = 100P(favor candidate A ) = 0.7P(not favor candidate A ) = 1 - 0. 7 = 0.3x = no. of…

Q: Suppose that on a certain messaging service, 4.63% of all messages fail to send. Thus, in a random…

Q: 3. A construction crew is building a new bridge. A structural component has a 15% chance of failing…

Q: The data in the following table show the association between cigar smoking and death from cancer for…

A: The total number of men for the survey are 135,265. The data table is, Died from cancer Did…

Q: Suppose the prevalence of alcoholism among college students is 20% among those living in group…

A: It is given that the prevalence of alcoholism(A) among college students is 20% among those living in…

Q: 28% of all college students major in STEM (Science, Technology, Engineering, and Math). If 33…

A: Since you have posted a question with multiple sub parts, we will provide the solution only to the…

Q: 15. About 8% of males are color-blind. A researcher needs a color-blind male for an experiment and…

A: Given that Probability of males whose color -blind (p) = 0.08 (8%) a) Probability that She finds a…

Q: An oncologist performs a high-risk treatment on a very aggressive type of cancer for 28 different…

A: Let us define X as the number successful treatments follows Binomial distribution with n=28 and…

Q: 4. A local florist says that 85% of all flowers sold for Valentine's Day are roses. Consider a…

A: probability of florist says that flowers sold for valentine's day are roses(p)=0.85sample…

Q: Privacy is a concern for many users of the internet. One survey showed that 62.5% of internet users…

Q: Atlantic Airways flights were late (arrived or departed 15 minutes late or more). A random sample of…

A: We have given that Number of trials n=140 Success of probability p =20.4%=0.204 We use normal…

Q: 9.State Farm Insurance studies show that in Colorado, 55% of the auto insurance claims submitted for…

A: Binomial probability distribution is a type of discrete probability distribution.

Q: It is known the 60% of toddlers have too much screen time. A randome sample of 8 toddlers were…

A: Ans - Given, 60% of toddlers have too much screen time. Using binomial distribution With parameter…

Q: It is generally believed that nearsightedness affects about 12% of all children (p = 0.12). A…

A: Consider that p is population proportion of kindergarteners, who will be nearsighted.

Q: The owners of a motel in Florida have noticed that in the long run, about 40% of the people who stop…

A: Given, p = 0.40 This example follow Binomial distribution. Formula is; P ( n , r ) = n ! r ! ( n…

Q: In a recent survey, it was found that the median income of families in country A was $58,000. What…

A: Let X denote the income of families in country A. Given that median of X is 58000

Q: American Airlines' flights from Denver to Seattle are on time 80 % of the time. Suppose 12 flights…

A: The random variable X follows binomial distribution. X follows binomial distribution of n and p. The…

Q: Suppose 52% of students support the idea of paying student government…

Q: Suppose that 20% of all M&Ms are yellow. We will choose a random sample of 11 M&Ms from this…

A: Let x follows binomial distribution with parameters n = 11 and p = 0.20 The pdf of binomial…

Q: It is stated by the IRS that 71% of filed returns receive a refund. If you were to sample 50…

A: According to the given question, it is stated by the IRS that 71% of filed returns receive a refund.…

Q: 1,000 randomly selected business executives were polled. Assume that 25 percent of all business…

A: Answer:In this question, it has given thatX ~ Bin(1000,0.25)Calculation of mean and variance :Mean =…

Q: 3. Officials at the suicide prevention center know that 5% of all people who phone their hotline…

Q: Suppose there is a 14.1% probability that a randomly selected person aged 30 years or older is a…

Q: 23. A department store has determined that 25% of all its sales are credit sales. A random sample of…

A: We have given that Sample size n=75 Population proportion p=0.25

Question

3.4 Q 2 A particular telephone number is used to receive both voice calls and fax messages. Suppose that 20% of the incoming calls involve fax messages, and consider a sample of 20 incoming calls.

(a) What is the probability that at most 6 of the calls involve a fax message?

(b) What is the probability that at least 6 of the calls involve a fax message?

Video Video

Expert Solution