Eighty percent of the students at a particular large university have logged on to Facebook at least once in the past week. A sample of 95 students is asked about their Internet habits.   Round all answers to four decimal places.   a. What is the probability that more than 75% of the sampled students have logged on to Facebook within the last week? Answer 1 Question 9   b. What is the probability that the proportion of the sampled students who have logged on to Facebook within the last week is between 0.78 and 0.85?

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: Suppose that 65% of people own dogs. If you pick two people at random, what is the probability that…

A:

Q: Twenty-one percent of people say they've seen a ghost or felt its presence. If 13 people are asked,…

A: Answer:- Given, Twenty-one percent of people say they've seen a ghost or felt its presence. That is,…

Q: suppose that 64% of people own dogs. If you pick two people at random, what is the probability that…

A: Solution: Given information: Let A be the event that people having own dog P(A)= 0.64

Q: Sixty-five percent of men consider themselves knowledgeable soccer fans. If 10 men are randomly…

A: Given  n=10, p=65%

Q: 2016, 48.3% of college students voted.  What is the probability of getting 40 or fewer students who…

A: Number of trail n=100Probability of success p=0.483

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

A: I solved exactly first 3 subpart because of bartleby policy....   Let random variable X: number of…

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

A: Let p be the probability that a person own dogs.Then,p=0.54.

Q: According to the National Center for Education Statistics, 17% of all people in the United States,…

A:

Q: In a recent survey, 65% of the community favored building a health center in their neighborhood. If…

A: Given  p=65%, n=14, x=8

Q: According to police sources, a car with a certain protection system will be recovered 94% of the…

A: Solution- Given that , p=94% or p=0.94 and q=1-p q=1-0.94 q=0.06 and Let X denote stolen cars and…

Q: Suppose that about 85% of graduating students attend their graduation. A group of 21 graduating…

A: Let the R.V X denotes the number of graduating students attend their graduation and it follows the…

Q: According to a Gallup Poll, the probablity that a Republican approves of the death penalty is 69%.…

A: The probability that Republicans approve of the death penalty is 69%.p=0.69wants to calculate…

Q: A poll showed that 68.5% of Americans say they believe that Marilyn Monroe had an affair with JFK.…

A: Given information- Percentage of Americans believe that Marilyn Monroe had an affair with JFK =…

Q: In a large city, 70% of people own a cell phone. A sociologist wishes to study the impact cell…

A: The objective of this question is to find the probability that between 33 and 36 people out of a…

Q: 8. 68% of all bald eagles survive their first year of life. Give your answers as decimals, not…

A: Probability of bald eagles surviving the beginning (first year) of life is 0.68.Sample size,

Q: Suppose​ 12% of Americans smoke. If we randomly select 10​ Americans, what is the probability that…

A: Consider X is a random variable that follows binomial distribution with the sample size, n equals to…

Q: According to Gallup poll, 36% of all college students use an Apple i phone only.  If a sample of 200…

A: 1. Consider that p is population proportion of all college students who use an Apple i phone.

Q: A study indicates that 37% of households have have a dog. You randomly sample 8 households. Find the…

A:

Q: You want to determine the probability that when five consumers are randomly selected, exactly two of…

A: The question is about binomial prob. distribution Given : No. of randomly selected customers ( n ) =…

Q: Suppose that 38% of people own dogs. If you pick two people at random, what is the probability that…

A: Given that, Probability, p = 38% = 0.38 Sample size = 2

Q: 53% of undergrads at UD are from Ohio. If a Simple Random Sample of 180 UD undergrads will be taken,…

A: proportion of Undergrads at UD are from Ohio(p)=0.53sample size(n)=180Mean()=p=0.53standard…

Q: Suppose that 68% of people own dogs. If you pick two people at random, what is the probability that…

A: According to the provided information, 68% of people own dogs.

Q: What is the probability that a student selected randomly either preferred Obama or is an…

A:

Q: In 2017, 39.2% of the total email messages is spam. If 59 email messages from 2017 are randomly…

A: From the given information ,39.2% of the total email messages is spam .ie, P(success) = p = 39.2% =…

Q: According to a 2009 Reader's Digest article, people throw away about 7% of what they buy at the…

A: Given: Population proportion (p) = 7%  = 0.07    Sample proportion                  Sample size (n)…

Q: Of all the registered automobiles in a city, 5% fail the emissions test. Fifteen automobiles are…

A: We have given that  Sample size n=15  Probability of success p=5%=0.05  q=1-p=0.95 P(X=x)=…

Q: Fifty-three percent of all U.S. citizens have some college education. Choose 10 people at random,…

A: Answer: Given that                    p= 0.53      ,   n=10                      now will use…

Q: Suppose that kearny Hight school ,37%are juniors,54% are female, and 28%are female and juniors .Find…

A:

Q: Suppose that 67% of people own dogs. If you pick two people at random, what is the probability that…

A: From the provided information, 67% of people own dogs that is p = 0.67 Sample size (n) = 2 X~B (2,…

Q: According to a 2009 Reader's Digest article, people throw away approximately 10% of what they buy at…

A: Given Information: According to a 2009 Reader's Digest article, people throw away approximately 10%…

Q: Fifty-three percent of all U.S. citizens have some college education. Choose 10 people at random,…

A:

Q: The probability that a house in an urban area will develop a leak is 6​%. If 13 houses are…

A: Given : The probability that a house in an urban area will develop a leak is 6​%. 13 houses are…

Q: The data in the table represent the number of consumer complaints against major U.S. airlines. If…

A: From the given information we have Number of complaints filed against United Airlines = 1172  Total…

Q: Suppose that 55% of people own dogs. If you pick two people at random, what is the probability that…

A: Let p be the probability that a person owns dog. Given that p = 0.55 Let X denote the number of…

Q: survey was given to adult residents in a particular city. It found that 29% of the residents…

A: