12. In a certain town, males and females form 50 percent of the population. It is known that 20 percent of the males and 5 percent of the females are unemployed. A research student studying the employment situation selects unemployed persons at random. What is the probability that the person selected is i) a male ii) a female?

Q: I An animal shelter has a 60% adoption rate for puppies. Of the puppies that are adopted 85% live to…

A: Let A= adoption rate for puppies L= The puppies  live to be 7 years or older P(A)=0.60 PL|A=0.85

Q: Assuming that the population is half male and half female, what is the probability that a random…

A: From the provided information,The population is half male and half female, probability of male (p) =…

Q: In a Internee program at Airline Company, 45 percent of the internees are female and 55 percent…

A: 1) Let 'F' represent the females, and 'M' represent the males. Similarly, 'B' represent the business…

Q: From the research conducted by a Cancer Research Institute, it has been found that 5 percent of male…

A: Number of male cancer patients = 50 Number of female cancer patients = 50 Total number of cancer…

Q: Eight percent of Americans have a master’s degree. If five Americans are selected at random, what is…

A:

Q: e students in the sample no more than 11 are Business majors

A: Here, probability of success implies that the student is business major which is equal to 0.30.…

Q: Eight percent of Americans have a master’s degree. If five Americans are selected at random, what is…

A: Let X represent random variable   n=5 p=0.08   X~ binomial (5, 0.08)

Q: 30% of bacteria (B) strains are resistant to antibiotic (A). Bacteria from 7 individuals was…

A:

Q: What does 35/100 in the first row of the table express? Is it P(Point guard and female)? P (Point…

A: Here given percentages of several men and women in the NBA and WNBA. Their positions are shown and…

Q: 29% of automobile drivers state that they have driven while under the influence of alcohol. Suppose…

A: Given that  n = 4 , p = 29% = 0.29 , q = 1 - p = 1 - 0.29 = 0.71 X ~ Binomial (n = 4 , p = 0.29) X =…

Q: Six percent of American adults are considered millionaires. If 100 randomly selected adults are…

A: Here it is given that 6% of American adults are millionaire. We need to find the probability of 7 or…

Q: selected at random, what is the probability that this person has an O blood type? How about the AB…

A: We have given that the blood groups of 200 people are distributed as follows: type A blood = 40 type…

Q: 7) According to the American Academy of Ophthalmology, there is a 9% chance that someone will have…

A: Geometric Distribution: Let there is a sequence of trials, each having two outcomes, say Success and…

Q: 11. In a survey of high school students, 288 students indicated that they played organized sports…

A: Step 1:To find the probability that a randomly selected student indicated they played organized…

Q: 20.  In a large shipping company, 70% of packages arrive to their destination on time.  If 9…

A: Solution Let X : packages arrive to their destination on time  And X ~ Binomial (n=9, p=0.70) Ans we…

Q: 5) 74% of freshmen entering public high schools in 2006 graduated with their class in 2010. A random…

A:

Q: In a shooting arena there are 16 guns of type A and 3 guns type B. Probability of hitting a shot…

A: Let us denote H=the event of hitting There are total (16+3)=19 guns.So, P(A)=1619, P(B)=319Given…

Q: In Jamalpur District, 60% of children started primary school, 70% of the children who have completed…

A:

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: Supposed that Stephen is the quality control supervisor for a food distribution company.  A shipment…

A: We have given that  Success of probability p =13%=0.13 Number of trials n=10 X~binomial ( n ,p)

Q: In a recent survey, it was found that the median income of families in country A was $58,000. What…

A: Let X denote the income of families in country A. Given that median of X is 58000

Q: Employment data at a large company reveal that 59 % of the workers are married, that 27 % are…

A: Given,Employment data at a large company reveal that 59% of the workers are married. That is, P(M) =…

Q: The infection rate of a certain disease is estimated to be 6%. Suppose 18 people enter a room…

A:

Q: In a survey of Canadian nurses who worked more than 45 hours per week, it was found that 321 nurses…

A: Given Data n(nurse under 35 age)=321 n( nurse between 35 to 55 age)=403   Total=321+403=724

Q: Assuming that the population is half male and half female, what is the probability that a random…

A: Given :Assuming that the population is half male and half female So , the population proportion of…

Q: Lactose intolerance affects about 20% of non-Hispanic white Americans. If a person is selected from…

A: Solution: 2. From the given information, Lactose intolerance effects about 20% of non-Hispanic white…

Q: Assume that a machine produces 2% defective items. A random sample of 25 items is chosen. (i) Find…

A: Given Data: The number of items in the sample is: n=25 The probability of defective items is:…

Q: A shipment of 8 parcels to a production company which contains 3 that are damaged. If the…

A:

Q: Employment data at a large company reveal that 55 % of the workers are married, that 41 % are…

A: these are the correct answers provided by us

Q: 4. Suppose a clothing store owner is analyzing store traffic. They find that female customers arrive…

A: Suppose a clothing store owner is analyzing store traffic. They find that female customers arrive…

Q: 8) According to the American Academy of Ophthalmology, there is a 27% chance that someone will have…

A: Given that  n=7 , p=27%=0.27 , q=0.73 X~Binomial(n=7,p=0.27) X=Number of people have blue eyes…

Q: Assume that 15% of the drivers in a certain city do not have a valid driving license. A policeman…

A: The probability that a driver have a valid driving license (p) = 0.85(1-0.15)   Consider a random…

Q: Suppose that you and two friends go to a​ restaurant, which last month filled approximately 78 %78%…

A:

Q: The monthly incidence of necrotizing fasciitis in the U.S. is 50 cases. The population of the U.S.…

A: Solution: It is given that the monthly incidence of necrotizing fasciitis in the U.S. is 50 cases.…

Q: 80% of U.S. drivers over the age of 30 have had a speeding ticket and 55% of those have also been in…

A: Given,         Pspeeding ticket=0.80         Paccident while behind the wheel=0.55

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.