On average, an IRS auditor discovers 4.7 fraudulent income tax returns per day. On a randomly chosen day, what is the probability that she discovers fewer than two?

Q: In a standard deck of cards, what is the probability that a person selects first a face card and…

A: given data  standard deck of 52 cards  select cards without replacement P(first face card and then…

Q: In the marketing division of a particular company, there are 65 part-time employees and 33 full-time…

A: From the provided information, There are 65 part-time employees and 33 full-time employees. Total…

Q: Suppose that in a group of 510 students at ISU, there are 67 business majors and 204 freshmen. There…

A: We have to find the solution.

Q: In 2014, approximately 13% of nonelderly Americans adults had no health insurance. Suppose that a…

A: Given: Proportion of American adults having no health insurance, p=0.13 Sample size, n=400

Q: If a student is selected at random from Ms. Avery's homeroom, what is the probability that the…

A:

Q: In a certain congressional district, it is known that 40% of the registered voters classify…

A: Givenp=0.40sample size(n)=10Let "x" be the no.of votors are…

Q: A credit card company has a 0.01 default rate on its accounts. If 20 randomly selected accounts are…

A: Given information:A credit card company has a 0.01 default rate on its accounts. 20 randomly…

Q: It is estimated that 0.52 percent of the callers to the Customer Service department of Dell Inc.…

A:

Q: A student takes a ten-question true-false quiz, but did not study and randomly guesses each answer.…

A: Given : A student takes a ten-question true-false quiz  Probability of success,p = 0.5…

Q: Suppose that if you got in a collision, your claim amount would be around $25,000. You go to an…

A: Introduction: Denote the random variable X as the amount gained by the insurance company in a…

Q: Suppose that 70% of a town’s population have brown eyes, 40% have black hair, and 30% have both…

A: We have given  that population have brown eyes = 70% =0.70 population have black hair = 40% = 0.40…

Q: As a fringe benefit, Dennis Taylor receives a $50,000 life insurance policy from his employer. The…

A: Given that  Dennis Taylor receives a $50,000 life insurance policy from his employer. And, the…

Q: A survey reveals that 80% of the eligible people in a certain county vote during a county election.…

A: Here, n = 70 and p = 0.80.

Q: It is estimated that 3.6% of the general population will live past 90th birthday.  In a graduating…

A: From the provided information, It is estimated that 3.6% of the general population will live past…

Q: Ecording tó thẻ Nèw York Times, eleven percent of parents helped their college ildren write an…

A: Given data,p=11%=0.11n=7P(X≤2)=?

Q: Suppose that 9% of college undergraduates suffer from a psychological disorder. What is the…

A: Let p be the probability that an undergraduate has a psychological disorder. Given that p = 0.09 Let…

Q: The Philippines Institute of Volcanology and Seismology (PHIVOLCS) records an average of 20…

A: Given,The average no.of Earthquake a day(λ)=20Let X=no.of Earthquake a…

Q: According to one study conducted at the University of Texas, 70% of all Americans can do routine…

A: p = 0.7 n = 8

Q: If an average of 40 calls is required in a typical eight hour shift, what is the probability that…

A: Given that an average of 40 calls is required in a typical eight hour shift.

Q: 15% of adults in the United States do not make New Year's resolutions. Suppose a random sample of…

A: 15% of adults in the United States do not make New Year's resolutions. Suppose a random sample of…

Q: Assume that there is a 5% rate of disk drive failure in a year. a. If all your computer data is…

A: Let X represent the random variable p=1-0.05=0.95   a) n=2   X~ Binomial (2, 0.95)

Q: Approximately 16% of people are left-handed. If two people are selected at random, what is the…

A:

Q: A company receives 65% of its orders over the Internet. Within a collection of 18 independently…

A: Given data, n=18 p=65%=0.65 P(X≤4)=?

Q: Assume that there is a 5% rate of disk drive failure in a year. a. If all your computer data is…

A: Given that the rate of disk drive failure in a year is 5%.

Q: Suppose that historically, 66% residents in an apartment building own at least one pet. If there are…

A:

Q: Suppose that a poll finds that 33.7​% of taxpayers who filed their tax return electronically​…

A: n=3p=0.337A random variable XBinomial(n=3, p=0.337)P(X=x)=

Q: A fuel company conducts a geologic survey, that has a 20% chance of striking an oil reserve. What is…

A: Geometric distribution: The probability mass function of Geometric distribution is P(n) = p(1 - p)n…

Q: In a certain congressional district, it is known that 20% of the registered voters classify…

A:

Q: 4. In 2010, your company paid overtime wages or hired temporary help during 32 weeks of the year.…

A: Note: As we are entitled to solve one question at a time, I will answer the first question, please…

Q: Suppose that Revenue Canada will audit 20% of income tax returns reporting an annual income of more…

A: Given,n=15p=0.2q=1-p=1-0.2=0.8A random variable X~Binomial(n=15 , p=0.2)P(X=x)=15x 0.2x0.815-x     ;…

Q: In a certain congressional district, it is known that 60% of the registered voters classify…

A:

Q: Suppose that 68% of people are left handed. If 24 people are selected at random, what is the…

A: Here, probability that the people are left handed is 0.68 and sample size 'n' is 24.

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: Based on a Bellows survey of adults, there is a 0.48 probability that a randomly selected adult uses…

A:

Q: Jacobs & Johnson, an accounting firm, employs 19 accountants, of whom 8 are CPAs. If a delegation of…

A: GivenTotal no.of accountants=19No.of CPAs=8No.of non CPAs=11

Q: acobs & Johnson, an accounting firm, employs 17 accountants, of whom 6 are CPAs. If a delegation of…

A: p = 617=0.3529 ========================

Q: Suppose that 28.7% of Canadians contributed to their RRSP (registered retirement fund) this year. If…

A: We have given that,  X be the random variable from binomial distribution with p= 28.7% = 0.287 and…

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.