Assume that when adults with smartphones are randomly selected, 55% use them in meetings or classes. If 5 adult smartphone users are randomly selected, find the probability that exactly 2 of them use their smartphones in meetings or classes

Q: If the mean number of serious accidents per year in a large factory is 4, find the probability that…

A: Obtain the probability that in the current year there will exactly 4 accidents. The probability that…

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: Suppose that four people are to be randomly selected from a group of 8 women and 5 men. What is the…

A: Given,Four people are to be randomly selected from a group of 8 women and 5 men.

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: Suppose a jar contains 12 red marbles and 30 blue marbles. If you reach in the jar and pull out 2…

A: Solution: From the given information, a jar contains 12 red marbles and 30 blue marbles. Total…

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: If a coin is tossed 6 times. Calculate the probability of obtaining more tails than heads.

A: Given data: The number of times a coin is tossed n=6. The probability of getting the tail is, p=12…

Q: Suppose a jar contains 5 red marbles and 31 blue marbles. If you reach in the jar and pull out 2…

A: Solution

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: One card is selected at random from a standard deck of cards (52 cards in a deck). Determine the…

A: 1 card is drawn, what is the probability that, 1 card is 5 or 1 card is HEARTTotal number of ways of…

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: In a large population, 68% of the people have been vaccinated and you select 3 people, how do get…

A: The objective of this question is to find the probability that all three people selected from a…

Q: find the probability that exactly 2 people willget enough sleep each night?

A:

Q: Assuming a married couple has an equal chance of giving birth to a male or a female child, find the…

A:

Q: If 20% of the bolts produced by a machine are defective, determine the probability that out of 6…

A: Given: p=20%=0.20n=6

Q: ility that a randomly selected individual will contract horribulitis is 0.2. If a random sample of 8…

A: Given: p = 0.2 n = 8 x=2

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: P3 Harvard students graduate with honors =

A: Let , X be the number of Harvard students graduate with honors Here , X→B(n=3 , p=0.48) The…

Q: If one card is drawn from a well shuffled deck of 52 cards, find the probability of drawing a heart…

A: From the provided information, Total cards in deck = 52 Total heart card = 13

Q: If one card is drawn from a standard deck, find the probability of getting a black or a face card

A: Given that, Card is drawn from a standard deck, We have to  find the probability of getting a black…

Q: From a group of 4 TV critics and 8 movie critics, we randomly select 5 people. If at least 2 movie…

A: Solution-:l We have 4 TV  critics and 8 movie  critics We randomly select 5 people If at least 2…

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: Suppose a jar contains 14 red marbles and 27 blue marbles. If you reach in the jar and pull out 2…

A:

Q: jar contains 7 red marbles, 8 green marbles, and 4 blue marbles. What is the probability that you…

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: A die is rolled 20 times and the number of twos that come up is tallied. Find the probability of…

A: Given problem is : A die is rolled 20 times and the number of twos that come up is tallied. Find…

Q: It is expected that during cricket world cup the probability that as serious trouble maker will try…

A: probability that as serious trouble maker will try to disrupt a cricket match is 6 % probability…

Q: A box contains 30 calculators of which 7 is defective. If three calculators are selected without…

A:

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: 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: Suppose a jar contains 8 red marbles and 23 blue marbles. If you reach in the jar and pull out 2…

A: Given that  Total marbles = 8 + 23 = 31 Red marbles = 8 Blue marbles = 23 2 marbles are drawn at…

Q: If 7 people are randomly​ selected, find the probability that no 2 of them have the same birthday.…

A: Formula to calculate probability is given by,  Probability = (Favourable outcomes/Total outcomes)…

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: 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: If the probability of being hospitalized during a year is 0.25. Find the probability that no one is…

A: X has binomial distribution. X~binomial(n,p)n=3p=0.25probability mass function of X;…

Q: Among teenagers old enough to drive, 35% have their own cars. If a marketing research team randomly…

A: We want to find the probability

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.