E-readers In 2011, 12% of Americans owned an elec-tronic reader of some sort. Suppose that 43% of people with e-readers read at least 3 books last year, whileamong people without an e-reader, only 11% read 3or more books in the course of the year.a) Explain how these statistics indicate that owningan e-reader and reading 3 or more books are notindependent.b) What’s the probability that a randomly selectedAmerican has read 3 or more books?

Q: At an inspection line, several motors are inspected. It is known that defects between motors are not…

A: Solution-: Given : λ=5 We find, (a) P[the first defective motor is the fifth motor that you…

Q: The U.S. Department of Transportation recently reported that 80.5% of U.S. airline flights arrived…

A: Here  The U.S. Department of Transportation recently reported that 80.5% of U.S. airline flights…

Q: ABC Interactive survey stated that 25% of employees said that their company is loyal to them. Ten…

A:

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

A:

Q: It is known that a certain basketball player will successfully make a free throw 90.71% of the time.…

A: From the given information,P = 90.71%= 0.9071So, q = 1- P = 1-0.9071 = 0.0929n = 11we have to find…

Q: In a recent year, about 35% of all infants born in a country were conceived through in-vitro…

A: From the given information, the percent of all infants born in a country were conceived through…

Q: Suppose the first generation Apple iPad has 5% chance of being defective. What is the probability…

A: From the provided information, Apple iPad has 5% chance of being defective that is p = 0.05 Sample…

Q: Assume that when adults with smartphones are randomly​ selected, 59​% use them in meetings or…

A:

Q: An insurance company needs to develop a new bankruptcy policy in a new city. It was observed an…

A:

Q: The probability that a school-grade student would drink water, fruit juice, and soda is 0.5, 0.3,…

A: We can select 6 students who will drink water from 15 students in 15C6 ways.  The probability for…

Q: What is the probability of selecting one person at random who is a smoker?

A: From the provided information, Total person = 100 Number of persons who smoke = 54

Q: What is the probability of obtaining blue followed by green or purple?

A: Given ,First spinner is having three different colours pink, blue, brown.Second spinner is having…

Q: A market research organization surveyed 102 people and found that 73 of them would like more…

A:

Q: What is the probability of picking three spade face cards or two red cards?

A: Here we have to find probability of picking three spade face cards or two red cards

Q: If the probability of being hit by lightning is 1 in 1,000,000, what is the probability of not…

A: Given that , P (being hit by lightning) = 1/1000000 =0.000001

Q: Should the one-tailed or the two-tailed probability be used to assess performance  of the students?

A: The tail of the test depends on the alternative hypothesis of the test. The possible alternative…

Q: Suppose the prevalence of type II diabetes in a community is 36%. Researchers want to sample 16…

A: Suppose the prevalence of type II diabetes in a community is 36%. Researchers want to sample 16…

Q: In 2021, 500 teachers in GCPS were surveyed. 230 teachers surveyed were Science teachers, 200…

A: Given: N=500 N(S)= 230 N(M)=200  Half of the teachers teaching Math also teach a science subject.…

Q: Assume that when adults with smartphones are randomly​ selected, 42​% use them in meetings or…

A: Given that, Probability, p = 42% = 0.42 Sample size = 20

Q: Assume that when adults with smartphones are randomly​ selected, 57​%use them in meetings or…

A:

Q: In a poll conducted by the general social survey, 70% of respondents said that their jobs were…

A: Probability of respondents said that their jobs were sometimes or always stressful(p)= 0.70sample…

Q: Jacks were drawn 2 out of 4 times. Calculate the experimental probability.

A:

Q: What is the probability that fewer than ten of them used their phones for guidance on purchasing…

A: The random sample of cell phone owners is studied, The percentage of cell phone owners who use their…

Q: Privacy is a concern for many users of the Internet. One survey showed that 59% of Internet users…

A: Let p be the probability of concerned about the confidentiality of their email Based on this…

Q: The Jones family was one of the first to come to the U.S. They had 7 children. Assuming that the…

A: It is given that n=7 and p=0.5.

Q: A mortgage advisor sells on average 3.5 mortgages every two weeks. i. What is the probability that…

A: (i) Obtain the probability that they sell 5 mortgages in a two week period. The probability that…

Q: What is the probability there are at least 5 cars in the drive-thru?

A:

Q: If 27% of high school students said that they exercise regularly, find the probability that 5…

A: Given that, the probability of students exercise regularly= 27%= 0.27 P(5 exercise regularly)=?

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: Approximately 10% of the population is left-handed. What is the probability that exactly two…

A: Probability of the population is left-handed(p)=0.10sample size(n)=20Let "x" be the no. of students…

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.