What is the probability that exactly two-fifths of the freshmen gain weight

Q: Suppose that 34% of people own dogs. If you pick two people at random, what is the probability that…

A: No.of people select at random = 2 The probability of one person own dogs is, P(one person own dogs)…

Q: Assume that 15​% of people are​ left-handed. Suppose 12 people are selected at random. What's the…

A: Solution

Q: In turning out certain toys in a manufacturing process, the average number of defectives is 10%.…

A: From the provided information, Sample size (n) = 10 The average number of defectives is 10% that is…

Q: A researcher wishes to conduct a study of the color preferences of new car buyers. Suppose that 30%…

A: Given that, The random variable X is the color preferences of new car buyers. 30% population prefers…

Q: In 2014, approximately 13% of nonelderly Americans adults had no health insurance. Suppose that a…

A: Given: Proportion of American adults having no health insurance, p=0.13 Sample size, n=400

Q: poll is given, showing 70% are in favor of a new building project. If 8 people are chosen at…

A: According to the given information, we haveProbability, p = 70% = 0.70Sample size, n = 8

Q: A poll is given, showing 25% are in favor of a new building project. If 10 people are chosen at…

A: Given that, According to a poll,probability of favouring to new building project is 0.25   i.e.. P =…

Q: In a factory, 40% of the machines are defective. If a sample of 10 machines is selected randomly,…

A: Calculate the number of possible combinations of 4 defective machines out of 10: (10 choose 4) =…

Q: Find the probability that exactly 2 flights had delayed take-offs.

A: At a certain airport, 10% of flights experienced delayed take-offs because of airport operations. 15…

Q: Suppose that 54% of people own dogs. If you pick two people at random, what is the probability that…

A: Given, 54% of the people own dog.That is

Q: aple of fifty college students, what is the probability that at least forty of them participate in a…

A:

Q: a. 27% students have passed their last year's degree examination. A random sample of 7 students is…

A: Given data ,PPass=27 %=0.27PFail=1-PPass=1-0.27=0.37If n=7P4≤x≤6=?

Q: 8. 30% of the total of 150 students in a grade 12 class are going to prom. If 46 students are…

A: To solve this problem, we can use the hypergeometric distribution, which is ideal for scenarios…

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

A: Given: The probability of eligible voters in the next election who will vote for the incumbent is…

Q: Of 500 employees at a university, 45% are female. A sample size of 60 employees is chosen at random.…

A: Note: Use the finite correction factor if n/N is greater than 0.05. Therefore, the Finite…

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

A:

Q: A poll is given, showing 35% are in favor of a new building project. If 10 people are chosen at…

A: given dataP(favor new project) = p = 0.35sample size (n) = 10x = no. of people favor new project…

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: A poll is given, showing 25% are in favor of a new building project. If 10 people are chosen at…

A: According to the given information, we have A poll is given, showing 25% are in favor of a new…

Q: Twenty percent of all undergraduates at a university are chemistry majors. In a random sample of…

A: Given information:Population proportion (p) = 20%                                         p =…

Q: A poll is given, showing 55% are in favor of a new building project. If 8 people are chosen at…

A: Binomial Distribution: If we have n trials each having two outcomes, say Success and Failure, trials…

Q: A researcher wishes to conduct a study of the color preferences of new car buyers. Suppose that 40%…

A: Let X denote the no. of people prefer the color of brown and it follows binomial distribution with…

Q: A poll is given, showing 75% are in favor of a new building project. If 9 people are chosen at…

A: Given information- We have given a problem of the binomial distribution. We have given that a poll…

Q: If 10% of men are bald, what is the probability that fewer than 100 in a random sample of 900 are…

A: Solution:Binomial distribution approximated to normal distribution or not is checked below:It is…

Q: 15. If 4% of the total output of panels are substandard, find the probability of obtaining 0, 1,2,…

A:

Q: If 25 percent of students at a particular school use mechanical pencils, what is the probability of…

A:

Q: 15% of adults in the United States do not make New Year's resolutions. Suppose a random sample of…

A: 15% of adults in the United States do not make New Year's resolutions. Suppose a random sample of…

Q: Suppose in a local Kindergarten through 12th grade (K - 12) school district, 53 percent of the…

A: From the given information, n=300 and p=0.53.

Q: A three-bulbed flask contains five particles. What is the probability, to three significant figures,…

A: Let us assume X be the random variable representing the number of particles, out of total 5, in the…

Q: A poll is given, showing 60% are in favor of a new building project. If 10 people are chosen at…

A:

Q: A survey reveals that 20% of the girls are Riphah come from remote areas. If 20 Riphah Girls are…

A: Binomial distribution is discrete distribution that deals with the probabilities of success and…

Q: Suppose that 24% of people own dogs. If you pick two people at random, what is the probability that…

A: Given 24% of people own dogs

Q: Suppose 82% of all students at a large university own a computer. If 6 students are selected…

A: In this case, each student has the only options of "owning a computer" (defined as success) or "not…

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 coach claims that no more than 1/4 of undergrad students will attend football games. What is the…

A: Central limit theorem: The central limit theorem states that the sampling distribution of the sample…

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

A:

Q: Suppose that 30% of all college freshmen gain weight. A sample of 20 selected randomly. What is the…

A: The random variable X is the college freshmen gain weight which follows binomial distribution with…

Q: Suppose that 30%30% of all college freshmen gain weight. A sample of 1818 is selected randomly.…

A:

Q: It is determined that 62% percent of Grade 12s attend school in a particular urban school district.…

A: Given : n = 500 p = 0.62 q = 1 - p  q = 1-0.62 q = 0.38 Here n×p and n×q is greater than 5. hence we…

Q: Suppose that 53% of people own dogs. If you pick two people at random, what is the probability that…

A:

Q: 6. Prison Populations If 25% of U.S. federal prisoninmates are not U.S. citizens, find the…

A: The probability that the first federal prison inmates will not be U.S. citizen is = 25%=0.25 The…

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.