Assume that when adults with smartphones are randomly​ selected, 54​% use them in meetings or classes. If 8 adult smartphone users are randomly​ selected, find the probability that at least 2 of them use their smartphones in meetings or classes.

Q: In a sample of 1000 U.S. adults, 106 think that most celebrities are great role models. Two U.S.…

A: We can select the first adult in 1000 ways. When the first person is selected then the second person…

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 couple has 4 children. Write out the sample space of genders fort heir children, inorder of birth.…

A: It was stated that a couple has 4 children. The possible gender for each child is either male or…

Q: A company that manufactures computer components has a 3% defective rate. If 12 components are…

A: Givenp=3%=0.03n=12Let "x" be getting no.of defective…

Q: A company that advertises on the radio in a certain area receives on average 11 calls everytime it…

A: Formula : poisson distribution is given by

Q: A history class is comprised of 9 female and 4 male students. If the instructor of the class…

A:

Q: According to the National Highway Traffic Safety Administration, 83% of Americans used seat belts…

A: In this question it has given that,Probability (that Americans use seat belt belts regularly) =…

Q: A factory produces 50 cars a day. Out of the 50 cars, 2 of them will most likely have a problem with…

A: The total number of cars produced in a dayThe number of cars will mostly likely have a problem with…

Q: The probability that a student in Oakland will receive a B in Kathy Williamson's statistics class is…

A: Given that, The probability that a student in Oakland will receive a B in Kathy Williamson's…

Q: Assume that when adults with smartphones are randomly​ selected, 59​% use them in meetings or…

A:

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

A:

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: 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: find the probability that the educator is a female or an associate professor

A: We have given that an educators at a college were classified according to gender and academic rank.

Q: While driving to work, Arceli passes through 3 stop lights. The probability distribution of the…

A:

Q: A history class is comprised of 5 female and 10 male students . If the instructor of the class…

A: Given: Number of females = 5 Number of males = 10 Total number of students = 5+10…

Q: In a study done in my chicken coop, 82% of my birds enjoy eating earwimgs. Chose 7 at random. FIND…

A: The provided information are: Probability of success (p)  = 82% = 0.82 Number of birds chosen (n) =…

Q: Suppose the probability of purchasing a defective smart phone is 0.04. What is the probability of…

A: Introduction: Denote X as the number of defective smart phones obtained in a purchase of 20 smart…

Q: A thief must randomly guess the correct 5 digit pin from a 8 key keypad. What's the probability he…

A: Here there are two possibilities 1) If repetition of number is allowed 2)if repetition of number is…

Q: Suppose a quiz consists of 13 multiple choice questions, each question has four possible answers and…

A: Given : No. of multiple choice questions (n) = 13 Each question has 4 possible answers and 1 of them…

Q: Assume that when adults with smartphones are randomly​ selected, 57​%use them in meetings or…

A:

Q: A students' council with 22 members must select 3 students to help run a fundraiser. This is to be…

A: Given data A students council with 22 members must select 3 students  to help run a fund raiser.…

Q: In a study done in my chicken coop, 82% of my birds enjoy eating earwigs. Choose 7 birds at…

A: Let X denote the number birds enjoy eating earwigs. Then X follows a Binomial distribution with n=7…

Q: Find the probability of getting three or more cars that fail among six cars tested

A: Solution: To find: The probability of getting three or more cars that fail among six cars tested.?

Q: In 2016, more than 200,000 students took the AP® Statistics exam. Of these students, 14% earned the…

A: From the provided information, 14% earned the highest score of 5 that is p = 0.14 Sample size (n) =…

Q: assume that when adults with smart phones are randomly selected 58% use them in meetings or classes…

A: This is a Binomial Distribution Problem, therefore we can use the formula:…

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.