The recent survey conducted in a certain village suggests that 41.26% of all residents are self-employed. Suppose that this result is true for the current population of all villagers. If 31 residents are chosen at random, what is the probability that those who are self-employed are: fewer than 21? at least 14? greater than or equal to 9 but less than 14?

Q: n a recent survey of 619 Salinas residents, 437 stated they experienced significant traffic delays…

A: 437 stated they experienced delay 182 not experienced delay 619 total

Q: If couples are selected at random from the population, what is the probability that the first couple…

A: Let p denote the probability of having twins. Given that p = 3% = 0.03 Let X denote the trial number…

Q: Suppose that 70% of college women have been on a diet within the past 12 months. A sample survey…

A: Correct answer is 0.0371

Q: Suppose there is a 25.4% probability that a randomly selected person aged 30 years or older is a…

A:

Q: In a certain voting precinct, 81% of voters are registered democrats. what is the probability that,…

A:

Q: A population of women has 40% with dark eyes. If a sample of 20 women are selected from this…

A: Given: p=0.4 n=20 Let X~B(n,p)

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

A: Given, Let A be the event of success that Airlines report of its flights are on time Random sample…

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: Given that 58% of all gold dealers believe next year will be a good one to speculate in South…

A:

Q: Suppose there is a 14.3% probability that a randomly selected person aged 20 years or older is a…

A: Given,P(a person aged 20 years or older is a smoker)=0.143P(female/he or she smokes)=0.102

Q: Suppose there is a 10.1% probability that a randomly selected person aged 35 years or older is a…

A: To find: 1.The probability that randomly selected person aged 35 years or older is male and smoker…

Q: According to the June issue of Consumer's Digest, census figures show that in 1978 almost 53% of all…

A:

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: Suppose that on a certain messaging service, 4.63% of all messages fail to send. Thus, in a random…

A:

Q: Thirty percent of the people called agree to participate in a brief telephone survey. In a random…

A: Let X be a random variable follows Binomial Distribution then pmf of X is  P(x)=nCr px (1-p)n-x ,…

Q: It was revealed that 5% of all automobiles in a city did not pass inspection. Of the next ten…

A:

Q: In a town of 5000 people, 1000 are over 60 years old and 2000 are female. It is known that 40% of…

A: Given: Total People in town=5000Number of people over 60=1000Number of females=2000Number of female…

Q: According to the Experian Automotive, 35% of all car-owning households have three or more cars.Find…

A:

Q: Suppose there is a 10.4% probability that a randomly selected person aged 20 years or older is a…

A: Given that  P(smoke)=10.4%=0.104 P(Males/Smoke)=19.8%=0.198

Q: A batch of 50 items contains 10 defective items. Suppose 10 items are selected at random and tested.…

A:

Q: Suppose there is a 11.2% probability that a randomly selected person aged 35 years or older is a…

A: Given Information: There is 11.2% probability that a randomly selected person aged 35 years or older…

Q: About IO percent of the population is left-handed. Ofthose who are right-handed, about 40 percent…

A: Multiplication Rule:Multiplication rule for two dependent events A, and B is given by:

Q: Wells were dug in a plain, and it was found that 15% of the water from the dug wells was not…

A: Solution: Given: Number of new wells: n = 10 It was found that 15% of the water from the dug wells…

Q: Suppose there is a 24.6% probability that a randomly selected person aged 40 years or older is a…

A:

Q: From a prior national study, we are able to infer that the probability of a high school student…

A: Probability of a senior from Tom River  going to college (p) = 0.6 (since all of their parents have…

Q: The proportion of eligible voters in the next election who will vote for the incumbent is assumed to…

A: Given information- Sample size, n = 510 The proportion of eligible voters = 0.54 Now, from Binomial…

Q: The latest nationwide political poll indicates that for Americans who are randomly selected, the…

A:

Q: A lie detector is known to be 70% reliable when the person is quilty and 95% reliable when the…

A: The machine is reliable when person is guilty is 70% The machine is reliable when person is not…

Q: An after-school club sonsists of 10 juniors and 12 seniors. If 2 students are chosen at random to…

A:

Q: A customer from Cavallaro's Fruit Stand picks a sample of 4 oranges at random from a crate…

A: Let us denote X=the number of rotten orangesWe have to find P(X≥1)=1-P(X=0)Given that there are 80…

Q: In the construction of midrise buildings, a safety engineer claims that only 40% of all workers wear…

A: Solve using Binomial distribution

Q: A box with 15 silicon chips contains five defective chips. If a random sample of three chips is…

A: Given problem Given that   A box with 15 silicon chips contains five defective chips. Total…

Q: It is a well-established fact that 40% of people are scared of squirrels. - If we take a SRS of 250…

A: Checking condition to use normal distribution: np=250×0.40=100>10…

Q: A certain group of women has a 0.63% rate of red/green color blindness. If a woman is randomly…

A:

Q: a certain population, a group of people has a 0.23% rate of heterochromia. If a random person is…

A: Probability = number of favorable eventstotal number of events

Q: If a person is selected at random from this group, what is the probability that he/she d) Is…

A: Hi! Thank you for the question, As per the honor code, we are allowed to answer three sub-parts at a…

Q: In a of the population. It is known that 20 per cent of the males and 5 per cent of the females are…

A: Given : P(Male) = 0.5 P(Female) = 0.5 U = Unemployed , E = Employed P( U | Male) = 0.2 P(U | Female)…

Q: Suppose there is a 17.6% probability that a randomly selected person aged 35 years or older is a…

A: Unusual event: An event is said to be unusual if they have smaller probability of occurrence.…

Q: about 7% of the population of a large country is nervous around strangers. If two people are…

A: The probability that both are nervous around strangers is,

Q: Suppose there is a 20.6% probability that a randomly selected person aged 25 years or older is a…

A: Given information- The probability that a randomly selected person aged 25 years or older is 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: A survey of families revealed that 58% of all families eat turkey at holiday meals, 44% eat ham, and…

A:

Q: A manufacturer of laptops reports that among a shipment of 5000 sent to a local distributor, 1000…

A: Given: Number of laptop purchased is, n=10. Total number of shipment of laptop is, N=5000. Number…

Q: In a certain college, 33% of the physics majors belong to ethnic minorities. If 10 students are…

A: Solution-: Given: n=10,p=0.33 We find, P[no more than 6 belong to an ethnic minorities]=?

Q: customer from Cavallaro's Fruit Stand picks a sample of 3 oranges at random from a crate containing…

A: From the given information we want to find the probability sample contains one or more rotten…

Q: The latest nationwide political poll indicates that for Americans who are randomly selected, the…

A: Here, n=10 and p=0.55.

Q: A random sample of 15 persons is taken from a population in which 42% are Muslims. What is the…

A: It is given that a random sample of 15 persons is taken from a population in which 42% are Muslims.

Q: Thirty-eight percent of all shoppers at a large department store are holders of the store’s charge…

A: It is given that, thirty-eight per cent of all shoppers at a large department store is holders of…

Q: Approximately 6% of the male population is color-blind. If a random sample of 250 male adults is…

A: The random variable color-blindness follows binomial distribution. We have to find the probability…

Q: A certain group of women has a 0.06% rate of red/green color blindness. If a woman is randomly…

A: Concept: Compliments are the mutually exclusive pair of events. The complementation rule states that…

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.