61. In a certain town, males and females form 50 per cent of the population. It is known that 20 per cent of the males and 5 per cent 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 (a) male, (b) female?

Q: Sixty percent of U.S. mothers with school-age children choose fast-food as a dining option for their…

A: 1. The probability that two mothers in your sample choose fast food once to three times a week is,…

Q: 48% of all violent felons in the prison system are repeat offenders. If 33 violent felons are…

A: Solution : p = 48% = 48/100 = 0.48 n = 33 Let x be the number of violent felons in the…

Q: If 2% of the population is allergic to peanuts an(d)/(o)r tree nuts, what is the probability that…

A: From the provided information, 2% of the population is allergic to peanuts an(d)/(o)r tree nuts that…

Q: Web Browser Market Share. Market-share-analysis company Net Applications monitors and reports on…

A: Hello! As you have posted 4 sub parts,  we are answering the first 3 sub-parts.  In case you require…

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

A:

Q: At a college 70% of students are voting for a particular presidential candidate calculate the…

A:

Q: 13. According to a those polled ranked jobs or health care as the top domestic priority. What /CBS…

A: Suppose A is the event that people rank job or health care as the top domestic priority. Since 78%…

Q: The Dow Jones Industrial Average has reached 27,164 points this week.  An investment advisor…

A: The probability that a stock she recommends is profitable is 0.40, which is fixed. Thus, we have a…

Q: You have 4 pennies (1¢ each) and 3 nickels (5¢ each) in your pocket. You reach in and blindly grab…

A:

Q: If administrators are selected randomly from the​ faculty, what is the approximate probability that…

A: Given that, No. of teachers = 2000 P(men) = p = 50% = 0.50 P(women) = q = 50% = 0.50 No. of…

Q: What is the probability of no failures in a given day? b. What is the probability of one or more…

A:

Q: 3. In a large population, 0.1% of individuals have certain rare disease. If 10,000 individuals are…

A: Given that, In a large population , 0.1% of the population have certain rare disease So…

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: In a university class of 200 students, where 60% are females and 40% are males, what is the…

A: Answer:   We have a university class of 200 students, 60% female and 40% male. This means we have…

Q: 1. Study of consumer buying habits revealed that 30% of consumers only shop in retail brick and…

A:

Q: A vendor supplies 200 parts and claims that no more than 25% of them are defective. The receiving…

A: Total number of parts=200 Sample size(n)=5 Claim is that not more than 25% are defective

Q: 3. A recent study concerning knee injuries of football players compared two types of football shoes.…

A: Step 1:  The test here used is a test of difference of population proportions.There are two types of…

Q: The use of​ drones, aircraft without onboard human​ pilots, is becoming more prevalent. According to…

A: According to the given information,Probability of success, p = 55% = 0.55Sample size, n = 60Let X be…

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: A large community college district has 1500 teachers, of whom 50% are men and 50% are women. In this…

A:

Q: 2. The flight time for an airplane traveling from Muscat to Dubai is uniformly distributed between…

A:

Q: In 2003, 5% of all light vehicles sold (SUVs, pickups, passenger cars, and minivans) in a country…

A:

Q: A recent study concerning knee injuries of football players compared two types of football shoes.…

A: The random variable knee injuries which follows binomial distribution. There are two independent…

Q: A shipment of 5000 parts arrives where 0.5% of the parts are nonconforming. We randomly select 25…

A: Introduction: Denote X as the random variable representing the number of nonconforming parts in the…

Q: There were 49.7 million people with some type of long-lasting condition or disability living in the…

A: Givenp=19.3%=0.193n=1000Let "x" be the no.of people having a…

Q: It has been reported that 50% of college students graduate in six years. Consider a random sample of…

A:

Q: 10% of tax returns from Region A contain fraud. 15% of returns from Region B contain fraud. If 70%…

A: Given problem is : 10% of tax returns from Region A contain fraud. 15% of returns from Region B…

Q: According to the National Institutes of Health, 55% of adults experience some form of lactose…

A: Let p denotes the population proportion of adults who experience some form of lactose intolerance.…

Q: In a factory, there were 36 accidents involving machinery in the last six months. (a) Calculate…

A: Let X be the random variable of number of accidents involving machinery in the six months X~ Poi(36)…

Q: 18. Stress at work: In a poll conducted by the General Social Survey, 81% of respondents said that…

A: Given:n = 200,p = 0.81