A poll reported that 63​% of adults were satisfied with the job the major airlines were doing. Suppose 25 adults are selected at random and the number who are satisfied is recorded. -Find and interpret the probability that exactly 13 of them are satisfied with the airlines. -Find and interpret the probability that between 11 and 14 of​ them, inclusive, are satisfied with the airlines. -Would it be unusual to find more than 22 who are satisfied with the job the major airlines were​ doing?

Q: A car rental company randomly assigns one of its 6060 cars to a customer. 3.Of the 6060 cars, 44 of…

A: Probability of a customer assigned a red car = ( Favourable outcome )/(Total outcome ) i.e.

Q: Three students from a 14 student class will be selected to attend a meeting . 5 of the students are…

A: Let us say,  the probability that not all three of the students chosen to attend the meeting are…

Q: If 14% of active duty soldiers in the U.S. Army are women, find the probability that if four…

A: Let X represent the random variable   n=4 p=0.14   X~ Binomial (4, 0.14)

Q: A box contains 23 good parts and 8 bad parts. If two parts are drawn at random from the box with…

A: 23 good 8 bad __________ 31 total   Select two at random without replacement.

Q: Three students from a 15 student class will be selected to attend a meeting. 8 of the students are…

A:

Q: Suppose that 11 female and 9 male applicants have been successfully screened for 5 positions. If the…

A: Suppose that 11 female and 9 male applicants have been successfully screened for 5 positions. If the…

Q: If 50 of 250 people contacted make a donation to the city symphony, the probability of outcome of…

A:

Q: A poll is given showing 50% are in favor of a new building project. If 9 people are chosen at random…

A: Given data, p=0.50 n=9 P(X=3)=?

Q: In a class of 6 girls and 5 boys, what is the probability of having girls and boys seated…

A: The provided information is  6 Girls 5 Boys  The arrangement is Girls on first seat and girls on the…

Q: Three students from a 20 student class will be selected to attend a meeting. 9 of the students are…

A: Given that there 20 students in a class. Three students from a 20 student class will be selected to…

Q: A poll is given, showing 65% are in favor of a new building project. If 9 people are chosen at…

A:

Q: Three students from a 13 student class will be selected to attend a meeting. 5 of the students are…

A:

Q: if 14 jurors are randomly selected from a population where 44% are minorities, what is the…

A: Obtain the probability that 2 or fewer jurors will be minorities. The probability that 2 or fewer…

Q: Assume that when adults with smartphones are randomly selected 55% of them using meetings or classes…

A:

Q: Compute the probability that two or more students in a class of 20 students have the same birthday.

A: From the provided information, A class has 20 students. Assume that every year has 365 days. If the…

Q: A survey showed that 79% of hiring managers have a negative view of workers with a messy desk. If 7…

A: According to the given sum, Let X be a random variable that follows Binomial distribution(n=7,…

Q: Subjects were randomly chosen for a clinical trial consisting of 87 women and 88 men. 17 of the…

A:

Q: Three students from a 16 student class will be selected to attend a meeting. 5 of the students are…

A:

Q: A group of 9 people is randomly chosen from 5 freshmen, 3 sophomores, 6 juniors and 4 seniors to…

A: Given information: Number of freshmen, f = 5 Number of sophomores, s = 3 Number of juniors, j = 6…

Q: You have two categories of friends on social network (of your choice), namely friends and family.…

A: Given:- total contacts  = 346 family members = 92 female family members = half of family members…

Q: Amanda loves 80's music and 22% of the songs on her Spotify library are from the 80's. Suppose that…

A: Given - Sample Size = n = 50              Sample proportion = p = 22% = 0.22            Mean =…

Q: A box contains 20 white balls and 10 black balls. 8 balls are drawn at random one after another…

A: Given;a box contains 20 white balls and 10 black balls. and 8 balls are drawn at randomone after…

Q: Find the probability of obtaining exactly five purple jelly beans if they are selected with…

A: Let p be the probability of getting a purple jelly bean, then p = 20/(30+20) = 0.40 Let X denote the…

Q: According to a survey 450 of the 800 students of a college are against a new committee. If 10…

A:

Q: In a survey, 205 people indicated they prefer cats, 160 indicated they prefer dogs, and 40 indicated…

A: From the provided information, 205 people indicated they prefer cats, 160 indicated they prefer…

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

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

Q: Assume that when adults with smart phones are randomly selected 56% of them use them in meetings or…

A: Here we need to find the required probability using the binomial distribution.

Q: In a sample of 900 adults, 171 think that most celebrities are good role models. Two adults are…

A: Given,Total no.of adults=900no.of good role models=171

Q: Which of the following will have the smallest margin of error? Note that n denotes the sample size.…

A: Margin of error is given by, MoE= Z*sigma/√n Where sigma is standard deviation and n is sample size.…

Q: The probability that a newly matriculated student will not get to the second year of their studies…

A:

Q: What is the probability that among the students in the sample exactly 2 are female.

A:

Q: Time magazine reported that when 19,218 gas masks from branches of the military were tested, it was…

A: The number of masks are tested is 19,218.

Q: What is the probability of having 4 boys given the oldest is a boy?

A: Solution

Q: The probability that a randomly selected individual in a certain community has made an online…

A: We have to find out given probability...

Q: In a family of five children, what is the chance that there are

A: Given information: The family of five children. P(boy)=P(girl)=1/2.

Q: Three students from a 22 student class will be selected to attend a meeting. 9 of the students are…

A:

Q: For next year, 47% of veterans will buy a single family home. If we pick a random sample of 5…

A: Given Information: n = 5 p = 47% = 0.47 To find out the probability that at least 4 veterans will…

Q: There are 400 seniors in highschool, of which 180 are males. It is known that 85% of the males and…

A: Given,

Q: A recent survey of 1010 U.S. adults selected at random showed that 649 consider the occupation of…

A: General formula of probability is,  Probability = Number of favorable outcomesTotal outcomes

Q: What is the probability of randomly selecting all seniors to form a committee of two from a pool of…

A: We have to find the probability of randomly selecting all seniors to form a committee of two from a…

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.