According to the U. S. Statistical Abstract 2009, about 25% of persons age 18 - 24 participated in charity work in the past year. Among a sample of 64 persons in this age group, find the probability that 20 or more participated in charity work.

Q: According to the 2009 current Population Survey conducted by the U.S. Census Bureau, 40% of the U.S.…

A: In question, Given that according to the 2009 current Population Survey conducted by the U.S. Census…

Q: Although studies continue to show smoking leads to significant health problems, 20% ofadults in the…

A: According to the provided information, 20% of adults in the United States smoke. Consider a group of…

Q: According to a research​ corporation, 46​% of women in a particular region suffer from holiday​…

A:

Q: The Denver Post stated that 80% of all new products introduced in grocery stores are taken off the…

A:

Q: survey of 35 students at a Hong Kong business school showed the following majors:    Accounting 10…

A: It is given that the, There are a total of 35 students at a Hong Kong business school and out of…

Q: What is the joint probability of being between the ages of 18 and 40 and most commonly using a…

A: Step 1 In probability theory, an event is an outcome or a set of outcomes of a random experiment to…

Q: According to PSA, the probability of a randomly selected 90-year old Filipino survives for at least…

A: given data  probability that a randomly selected 90 year old filipino survive for atleast another…

Q: Refer again to the data from the MBA new-matriculants survey in exercise 52. Given that a person…

A:

Q: A recent poll  found that 30% of those surveyed are worried about aggressive drivers on the road. If…

A: Given that, A recent poll found that 30% of those surveyed are worried about aggressive drivers on…

Q: It is estimated that 1 in 59 students in Canada have been diagnose Austism Spectrum Disorder. In a…

A: It is given that, 1 in 59 students in Canada has been diagnosed with Autism Spectrum Disorder.  i.e.…

Q: What is the probability of someone guessing I am older than 48?

A: 8. The probability formula is, Probability=Number of favourable observationsTotal observations There…

Q: A pew research center survey asked adults in the United States which technology would be very hard…

A: Given information P(Internet) = 0.7 P(Smartphone) = 0.6 P(email) = 0.3 P(Landline) = 0.25 No of…

Q: According to the Federal Communications Commission 70% of all us households have vcrs in a random…

A: According to the provided information, p=0.70 n=15 The pmf of binomial distribution is: P(X=x) =…

Q: The National Coffee Association reports that among individuals in the 45 to 55 age, 70% drink…

A:

Q: Given that a Condo is purchased, what is the probability the mortgage is Adjustable?

A: The given summarized table is, From the table,  The probability of condo is purchased is,

Q: In an eight-child family, what is the expected number of boys? (Assume that the probability of a boy…

A: Let, X= number of boys  number of observations = n =8  probability of a boy= p = 1/2  So, X follows…

Q: According to govemment data, the probability that a woman between the ages of 25 and 29 was never…

A:

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: A news report stated that 65% of vehicles sold nationally were SUVs. A random sample of 100 vehicles…

A: Given info: Here, n=100, p=0.65.

Q: According to the American Dental Association, 60% of all dentists use nitrous oxide in their…

A:

Q: According to IDC, 70% of smartphones in the world use Google’s Android operating system in the…

A: Given: 70% of smartphones in the world use Google’s Android operating system in the fourth quarter…

Q: According to the Federal Insurance Agency statistics, the proportion of teenage drivers between the…

A: Standard normal score: If random variable X follows normal distribution then the standard normal Z…

Q: The table below shows the preferred mode of transportation for individuals in town A by age group.If…

A: According to the provided information, the total mode of transportation is (751 + 756  + 315 = 1822)

Q: In a survey of Engineering students, the following data were obtained on students' first reason for…

A: In a survey of Engineering students, the data were obtained on students' first reason for…

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: A recent survey found that 70% of all adults over 50 wear sunglasses for driving. In a random sample…

A: The binomial probability distribution is, PX=x=nxpx1-pn-x In the formula, n denotes the number of…

Q: On the average, two tornadoes hit major U.S. metropolitan areas every year. What is the probability…

A: 8. Given that the average number of tornadoes hit major U.S metropolitan areas every year is 2. Let…

Q: Out of a survey of 400 customers, under the assumption that 0.5 is the correct proportion, what is…

A: From the provided information, Sample size (n) = 400 Proportion (p) = 0.5

Q: At Denver international airport, 81% of recent flights have arrived on time. A sample of 12 flights…

A:

Q: In a technology company, it is known that the average of network failure is 3 per week. What is the…

A: Let X denote the number of failures per week.  It is given that Average number of failures per week…

Q: What is the probability that a student chosen at random is between the ages 10 and 13 and skips…

A:

Q: When drawing a card from a well–shuffled deck, all fifty–two cards are equally likely. What is the…

A: We know that, in a deck of 52 cards we have 4 suits namely, hearts, diamonds, spades, and clubs.…

Q: The Association reports that among individuals in the 48 to 55 age, 45% drink coffee. If 200 people…

A: let X: number of coffee drinkers…

Q: What is the probability that the next person surveyed is very prepared?

A: It is given that Frequency for Very prepared = 247 Total = 247+982+546+341+76 = 2192

Q: In a random survey of 20 students, find the probability that exactly 17 of them will say that they…

A: Given: Total number of students in survey n=20 Number of students say that they do not get enough…

Q: What is the probability the pedestrian was not intoxicated

A: Given data The table summarizes results from 990 pedestrian deaths   Driver  intoxicated?…

Q: What is the probability that it was from Ethiopia and did not occur in 2014

A: The probability formula is, Probability=Favourable outcomeTotal outcomes The totals are, From:…

Q: next problem with the production line diagnosed as being due to an initial repair that was…

A:

Q: According to IDC, 70% of smartphones in the world use Google’s Android operating system in the…

A: It is given that 70% of smartphones in the world use Google’s Android operating system . Then , the…

Q: During a study of auto accidents, the Highway Safety Council found that 60 percent of all accidents…

A:

Q: A research center pool showed that 80% of people believe that it is morally wrong to not report all…

A: Given: Proportion of people who believe reporting all income on tax returns is morally wrong =…

Q: assuming that the characteristics listed above are independent of each other, what is the…

A: The probabilities are listed that were presented by the prosecution for the known characteristics of…

Q: What is the probability that a shopper will check prices online but not use online coupons or a…

A: Venn diagram uses circle to represent a set. The overlapping portions of circles represents the…

Q: According to PAGASA (Philippine Atmospheric, Geophysical, and Astronomical Administration), on…

A: Given : Let X : Number of typhoons per year which is hit a CAR λ = 12Average number of typhoons per…

Q: A Gallup poll found that 73.2% of people in the US believe in hell. What is the probability that a…

A: Given that  A Gallup poll found that 73.2% of people in the US believe in hell  P(Believe in hell) =…

Q: Sixty-three percent of U.S. households have a personal computer. In a random sample of 400…

A: Let p be the proportion of households have a personal computer. Given that p = 0.63 Let X denote the…

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: To better understand how husbands and wives feel about their finances, Money Magazine conducted a…

A: (1) Obtain the probability that she feels she is better at getting deals than her husband, given…

Q: Based on a study by Dr. P. Sorita at Indiana University, approximately 12% of people have green…

A: It is given that n =0.12 and n = 650.

Q: A recent survey found that 70% of all adults over 50 wear glasses for driving. In a random sample of…

A: Let the random variable X be the number of wear glasses. X takes values 0,1,2,.....,10 . p =…