Suppose that 28.7% of Canadians contributed to their RRSP (registered retirement fund) this year. If we were to select a random sample of 6 Canadians, what is the probability that... .. exactly 3 of them contributed to their RRSP? .. at least 1 of them contributed to their RRSP? at most 2 of them contributed to their RRSP?

Q: In a Gallup Survey, 90% of the people interviewed were unaware that maintaining a healthy weight…

A: Given Information: 90% of the people interviewed were unaware that maintaining a healthy weight…

Q: It is estimated that 1 in 59 students in Canada have been diagnosed with Austism Spectrum Disorder.…

A: Given data: The expression for the probability that 1 in 59 students in Canada has been diagnosed…

Q: Suppose you select a token at random from the dish above. What is the probability that the token is…

A:

Q: It was estimated that 30% of all seniors on a campus were seriously concerned about employment…

A: Let us denote: E=seriously concerned about employment prospects G= seriously concerned about grades,…

Q: Suppose you manage the demand for a towing company in Little Rock, Arkansas. On a usual day your…

A: Here Given Company gets five request Per day So Here we can Use Poisson distribution

Q: A certain group of women has a 0.37 ​% rate of​ red/green color blindness. If a woman is randomly​…

A: The probability of compliment of an event A, is defined as P(A’) = 1 – P(A).

Q: Example 10: A survey from Teenage Research Unlimited (Northbrook, Illinois) found that 30% of…

A: Given: n=5p=30%=0.3q=1-p=1-0.3=0.7

Q: Suppose that, on average, telephone calls arrive at large switchboard at the rate of two per minute.…

A:

Q: In a given year, 2,264,724 males and 2,124,694 females were born in a certain country. If a child is…

A: Number of male born in that given year: NM=2264724 Number of female born in that given year:…

Q: If birthdays are equally likely to fall on any day, what is the probability that a person chosen at…

A:

Q: 13 percent of the patients in a study reported previous episodes of stroke or transient ischemic…

A: Solution: Given information: n= 70 Sample size  p= 0.13 Population proportion.

Q: 4) According to a recent study, 1 in every 8 women has been a victim of domestic abuse at some point…

A: Given, no of women= 25 1 in every 8 women is abused, therefore p=1/8 = 0.125 Let X be the random…

Q: In a survey of 2000 adults 50 years and older of whom 60% were retired and 40% were pre-retired, the…

A:

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

A:

Q: Suppose a group of students take an influenza test and 96% of the students test positive. What is…

A: Given that Student tested positive = 96% I.e probability of students tested positive is =0.96

Q: A. If we took a random sample of a single individual from this population, what is the probability…

A: Let X be the number of yellow flowers which follows binomial distribution. The probability of…

Q: A labour department reports that 20% of the workforce in large corporation is unemployed. It…

A:

Q: In a large introductory statistics lecture​ hall, the professor reports that 5656​% of the…

A: Introduction:Denote p1, p2 and p3 denote the probabilities that a student has never taken a calculus…

Q: About 10% of all adults deliberately do a one-time fling and feel no guilt about it. In a group of…

A: Answer: Given that: p= 0.1 , n= 7 now will use Binomial probability P(X=x)=nx*px*(1–p)n–x,where…

Q: c) Suppose that, on average, telephone calls arrive at large switchboard at the rate of two per…

A:

Q: Suppose you manage the demand for a towing company in Little Rock. On a usual day your company gets…

A:

Q: In a survey of 2000 adults 50 years and older of whom 20% were retired and 80% were pre-retired, the…

A: Total number of adults=2000. Retired people=0.20×2000=400. And, Pre-retired people=0.80×2000=1600.…

Q: 6. In a Gallup Survey, 90% of the people interviewed were unaware that maintaining a healthy weight…

A: We have given that,  X be the random variable from binomial distribution with probability of success…

Q: In a survey of 2000 adults 50 years and older of whom 40% were retired and 60% were pre-retired, the…

A: Let us denote the event: R=retired  P=Pre-retired  N=answered No Y=Answered yes Given that…

Q: A newly formed life insurance company has underwritten term policies on 120 women between the ages…

A: It is asked to find the probability that at least $150,000 claims should be paid. Each claim is…

Q: A securities analyst claims that, given a specific list of 6 common stocks, it is possible to…

A: Given: A securities analyst claims that, given a specific list of 6 common stocks, it is possible to…

Q: Transportation officials reported that 8.5 out of every 2000 airline passengers lost luggage during…

A: Solution: Given information : Let X be the random variable that airline passengers lost luggage…

Q: or the fiscal year​ 2007, a tax authority audited 1.74​% of individual tax returns with income of​…

A: It is given that the probability that a randomly selected individual for audit will have income…

Q: According to an article in the February 1991 issue of Reader’s Digest, patients face a 1 in 20…

A: From the provided information, Patients face 1 in 20 chance of acquiring an infection while…

Q: If records indicate that 4 houses out of 1000 are expected to be damaged by fire in any year, what…

A: Given that 4 houses out of 1000 are expected to be damaged by fire in any year. Therefore,…

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: It is estimated that 4000 of the 10,000 voting resident of a town are against a new sales tax. If 15…

A:

Q: Suppose that in the small state of Rhode Island in the USA, the average number of women suffering…

A:

Q: A certain group of women has a 0.29​% rate of​ red/green color blindness. If a woman is randomly​…

A: Given, A certain group of women has a 0.29​% rate of​ red/green color blindness. Let P(A) = 0.29% =…

Q: In a given year 2,103,001 males and 2,325,160 females were born in a certain county. If a child is…

A: Number of males = 2103001 Number of females = 2325160 Total number of child = 2103001 + 2325160 =…

Q: Airlines report that 45% of its flights are on time.  In a random sample of 80 flights, what is the…

A: A random variable X is said to follow a binomial distribution with parameters 'n' and 'p' ( where n…

Q: - An American Society of Investors survey found 30% of individual investors have used a discount…

A: 13 Given that 30% of individual investors have used a discount broker. The sample size is 9. Let us…

Q: An American Society of Investors survey iouria 30% of individual investors have used a discount…

A: Let X denote the number of the sampled individuals have used a discount broker. Then X follows a…

Q: In a recent poll of voters, 20% were displeased with both candidates. If 3 people were picked at…

A: Let x is random variable where people like candidates, and n is total number of trial.Given:20%…

Q: In a given​ year, 1,845,909 males and 2,015,569 females were born in a certain country. If a child…

A: Solution

Q: An entrepreneur owns seven corporations, each with more than $10 million in assets. The entrepreneur…

A: Given,n=7p=0.12q=1-pq=1-0.12=0.88A random variable X~Binomial(n=7 , p=0.12)P(X=x)=7x0.12x0.887-x  ;…

Q: Previous surveys indicate 33% of households in Barrie regularly recycle household waste through a…

A: Given that  n=10 , p=33%=0.33 , q=1-p=1-0.33=0.67 X~Binomial(n=10,p=0.33) X= Number of blue box

Q: (b) What proportion of the children were 35 months or older, but less than 45 months of age when…

A: Rearrange the data set and create a frequency table from the above data given.

Q: It is reported that 15% of all books sold are of the science fiction genre. If a bookstore sells 316…

A: The binomial probability distribution with parameters n and p is, PX=x=nxpx1-pn-x In the formula, n…

Q: Empirical evidence suggests that 25% of Florida drivers are uninsured. If four random Florida…

A: The probability of more than one driver is uninsured can be calculated using Binomial distribution:

Q: Within the general population in the 21st century, the chances of having twins are about 3 in 100…

A: Given Information: Let A be the event of getting a couple with twin baby. Let B be the event getting…