survey, 31 percent of the residents of a certain state who are age 25 years or older have a bachelor’s degree. A random sample of 50 residents of the state, age 25 years or older, will be selected. Let the random variable B represent the number in the sample who have a bachelor’s degree. What is the probability that B will equal 40?

Q: Based on experience, 60 percent of the people who enter a shoe store make a purchase. In a random…

A: 60 percent of the people who enter a shoe store make a purchase. Hence the probability that a…

Q: Of 100 patients with a certain disease, 10 were chosen at random to undergo a drug treatment that…

A:

Q: According to a recent study, 14% of U.S. drivers are uninsured. A random sample of seven drivers was…

A:

Q: It has been been found that 1 out of 10 visitors to a museum buys something from a gift shop. If we…

A:

Q: a recent survey indicates that 62% of HKU students who registered in an Economics course have…

A: We have to find out given probabiity..

Q: The percentage of female Americans 25 years old and older who have completed 4 years of college or…

A:

Q: A recent survey indicates that 62% of HKBU students who registered in an MATH course have purchased…

A:

Q: A manufacturing company regularly conducts quality control checks at specified periods on the…

A: Solution: Let X be the number of LED light bulbs are defective and n be the random sample of LED…

Q: Seventy-six percent of toddlers get their recommended immunizations. Suppose that 6 toddlers are…

A: Given,p=0.76n=6

Q: Of the 6 people who have taken their seats at a seminar, 2 have black hair. What is the experimental…

A: From the given information, 6 people who have taken their seats at a seminar, 2 have black hair.…

Q: According to a national​ study, 32​% of taxpayers used computer software to do their taxes for a…

A: From the given information, 32​% of taxpayers used computer software to do their taxes for a certain…

Q: The table summarizes results from 983 pedestrian deaths that were caused by automobile accidents.…

A: Total number of pedestrian who's no  intoxicated =70+573=643 Total number of accident=983 We want to…

Q: A recent survey indicates that 7% of all motor bikes manufactured at Craig's factory have  defective…

A:

Q: Based on data from the U.S. Center for Health Statistics, the death rate for males in the 15-24 age…

A: It is given that the death rate for males in the 15-24 age group is 114.4 per 100,000 population.

Q: A nylon connector manufacturing plant yields 16 % defective items. If 1000 connectors are randomly…

A:

Q: Twenty-six percent of couples who plan to marry this year are planning destination weddings. In a…

A: Givenp=0.26n=12Let "x" be the couple having destination…

Q: A Food Marketing Institute found that 50% of households spend more than $125 a week on groceries.…

A:

Q: According to a 2018 survey, 74 percent of employed young adults expect to bring work on a vacation…

A:

Q: According to a recent​ study, 64​% of households from a certain large region no longer have a…

A: The random variable cell phone service follows binomial distribution. The value of the proportion is…

Q: According to a study conducted by the Gallup organization, the proportion of Americans who are…

A: It is an importance stance in probability distribution . Binomial distribution is a discrete…

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

A:

Q: three out of four university students under 25 years old have eaten eggs for breakfast. If a random…

A: Solution: Given data: Probability, P = 3/4  = 0.75 Sample size (n) = 20 To find : the probability…

Q: A recent survey reported that 69% of Americans approve of human embryonic stem cell research. If an…

A: Given : Let A be the event of  Americans approve of human embryonic stem cell research. p ( A ) =…

Q: An insurance company classifies the airplane it insures into class L (low risk)   and class H (high…

A: Given, P(L)=0.7 P(H)=0.3 P(no accident | L)=0.99 P(no accident | H)=0.88 Conditional probability:…

Q: A study conducted in a US city shows that 15% live in poverty. Find the probability that among 9…

A: GivenUS city shows that 15% live in povertyp=0.15n=9x~Binomial(n=9,p=0.15)P(X=x)=(nx)×px×(1-p)n-x…

Q: A Food Marketing Institute found that 26% of households spend more than $125 a week on groceries.…

A:

Q: According to the National Institute of Allergy and Infectious Diseases, approximately 8% of American…

A: We want to find the probability X~Bin(n=10, p=0.08)

Q: A Food Marketing Institute found that 30% of households spend more than $125 a week on groceries.…

A:

Q: According to a national​ study, 32​% of taxpayers used computer software to do their taxes for a…

A: Solution: We are given:32​% of taxpayers used computer software to do their taxes for a certain tax…

Q: According to a recent study, 24% of the USA population is Catholic. The survey also shows that 71%…

A: Percentage of population is Catholic is 24%. Percentage of Catholic are Democrats is 71%. Percentage…

Q: A recent survey taken by Adecco of 1,047 employees found that 28% of them would lay off their bosses…

A: Let us denote X=the number of employees who would lay off their bosses. n=sample size= 10…

Q: A recent survey indicates that 62% of HKU students who registered in an Economics course have…

A: Let us denote X=the number of HKU students who registered in an Economics course n=number of trials=…

Q: In a recent year, about 37% of all infants born in a country were conceived through in-vitro…

A: It is given that , In a recent year. about 37% of all infants born in a country were conceived…

Q: A safety engineer claims that only 40% of all workers wear safety helmets when they eat lunch at the…

A: Given,n=6p=0.4q=1-0.4=0.6A random variable X~Binomial(n=6 , p=0.4)P(X=x)=6x0.4x0.66-x   ;…

Q: A recent survey indicates that 7% of all motor bikes manufactured at Baloyi factory have defective…

A:

Q: ) A recent survey indicates that 7% of all motor bikes manufactured at Baloyi factory have defective…

A:

Q: In a recent year, Delaware had the highest capita annual income with $51, 803. If σ = $4850 , what…

A: Given,  = 51803 ,  = 4850 Using central limit theorem, P( < x) = P(Z < ( x -  ) / (  / sqrt…

Q: In a New York Times article a reporter stated that seventy three percent of its readers favored the…

A:

Q: In the current campaign period, suppose a random person is selected, based on previous survey, there…

A:

Q: According to a recent survey, 31 percent of the residents of a certain state who are age 25 years or…

A: Given: n=50p=0.31 Let B represent the number in the sample who have a bachelor’s degree.  The…

Q: Public Opinion reported that 5% of Americans are afraid of being alone in a house at night. If a…

A: There is only two possibilities either the selected person is afraid of getting alone as success or…

Q: f 2 percent of the rifles in an arsenal are defective, what is the probability that a random sample…

A: Given that  2 percent of the rifles in an arsenal are defective . P = 2% = 0.02 Sample size (n) =…

Q: A recent survey taken by Adecco of 1,047 employees found that 28% of them would lay off their bosses…

A: It is given that in a survey taken by Adecco of 1,047 employees found that 28% of them would lay off…

Q: 2) In a Canadian population, 30% of people spend 4 hours or more per day on smartphone; 25% of…

A:

Q: 65% of Americans drink one coffee a day. With a random sample of 45 Americans, what is the…

A: Solution: Given information: n= 45 Sample of Americans  p= 0.65 Population proportion of Americans…

Q: What is the probability that the consumer is 18-24 years of age, given that he/she dislikes…

A: AS PER POLICY I HAVE CALCULATED 3 SUBPARTS  here use given table and basic probability rule and…

Q: A safety engineer claims that only 30% of all workers wear safety helmets when they eat lunch at the…

A: The Probability mass function for Binomial distribution is given by                     P(X=x)=ncx…

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 =…

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.