Assume that when adults with smartphones are randomly​ selected, 55​%use them in meetings or classes. If 10 adult smartphone users are randomly​ selected, find the probability that at least 7 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: Last year, 1,460 calculators were returned to the manufacturer. If 83,000 were produced, assign a…

A: Given: Total number of calculators produced=83,000 Number of calculators returned=1460

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: 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: find the probability of being dealt five diamonds from a standard deck of playing cards that also…

A: We know that,Number of cards in a standard deck = 52Number of diamonds in a standard deck = 13There…

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: 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: If a seed is planted, it has a 95% chance of growing into a healthy plant. If 9 seeds are planted,…

A:

Q: B- A magazine reported that 20% of American drivers read the newspaper while they driving. If 15…

A: Given data Probability of reading newspaper while driving p = 0.2 No of drivers selected n = 15 Let…

Q: On average, 24 cars pass through a toll booth every hour. What is the probability of at least one…

A:

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: 64% of all Americans are home owners. If 41 Americans are randomly selected, find the probability…

A:

Q: A weighted coin has a 62% chance of landing on heads.  You decide to flip the coin 3 times.…

A: Given: n = 3 Probability of landing head p = 0.62 Probability of landing tell q = 1-0.62 q = 0.38…

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: 3 An animal shelter has a 61% adoption rate for puppies. Of all puppies in the shelter, 77% live to…

A: The probability of selecting two items whos individual probability are p and q is given by; P(x)=p·q

Q: More than 8383% of the very largest colleges and universities have some online offerings. Suppose…

A:

Q: s tested will have an ave

A: The manufactured LED lights that have an average rated life of 1000 hours is , p=68.05%. The…

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: 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: It is certain that a lacrosse goalie will successfully make a save 91.83% of the time. Suppose that…

A: The probability that a lacrosse goalie will successfully make a save of the time is 0.9183.A sample…

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: 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

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: Suppose a basketball player has a 84% of making his free throws.  Assume that the free throws are…

A: Given,sample size(n)=3p=P(misses free throws)=1-0.84=0.16A random variable X~Binomial(n=3 ,…

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.