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: 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: from that year at the hospital is chosen at random. What is the probability that the baby is a girl?…

A: Given:As per the data to have a boy is 796 and to have a girl is 764so the total sample is 796+764…

Q: committee has thirteen members. There are two members that currently serve as the​ board's chairman…

A: Solution: Given data A committee has thirteen members Therefore  total members = 13 2 = members…

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

A:

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

A:

Q: A study determined that 5% of children under 18 years of age live with their father only. Find the…

A:

Q: With 5 professors and 15 students to choose from, what is the probability of choosing 12 people for…

A: The probability of choosing a committee of 2 professors and 10 students is approximately…

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

A:

Q: A recent poll of 300 executives' exercise habits revealed that 95 run and 127 bike.  49 reported…

A: P(A or B) = P(A) + P(B) - P(A and B)  Probability = favorable/total

Q: 5 people are chosen randomly from 4 women and 5 men to participate in an event.  What is the…

A:

Q: Two balls are picked at random from a bag containing 8 red balls and 5 white balls. Calculate the…

A: Given data :  Red balls = 8  White balls = 5  Total number of balls = 13

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: 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: 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: Assume that when adults with smartphones are randomly​ selected, 63​% use them in meetings or…

A:

Q: Suppose a class has 30 students, 13 male and 17 female. What is the probability that if a teacher…

A: It is given that the class consists of 30 students of which 13 are male and 17 are female. Teacher…

Q: The probability that a randomly selected 40-year-old female will live to be 41 years old is 0.988…

A:

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

A:

Q: assume that when adults with smart phones are randomly selected, 54% use them in meetings or…

A: Introduction: A random sample of 5 adult smartphone users was selected. Each of the selected…

Q: We are randomly select 4 people from a group consisting of 6 politicans and 10 criminals. Find the…

A: Number of politicians = 6 Number of criminals = 10 Total number of people = 16

Q: Assume that when adults with smartphones are randomly​ selected, 49​% use them in meetings or…

A:

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

A:

Q: A study determined that 4% of children under 18 years of age live with their father only. Find the…

A: Let X be the random variable from binomial distribution with probability (p) = 4% = 0.04 and sample…

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

A: Given,

Q: According to a survey a person receives on the average 4.3 of pieces of junk mail per day. What is…

A: A person receives on the average 4.3 of pieces of junk mail per day

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.