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Q: The average waiting time for a calling customer by the call center of a bank's telephone banking is…
A: Given Data: Let X represent the waiting time Waiting time follows exponential distribution E(X)=240…
Q: n a recent survey of 619 Salinas residents, 437 stated they experienced significant traffic delays…
A: 437 stated they experienced delay 182 not experienced delay 619 total
Q: According to the National Oceanic and Atmospheric Administration (NOAA), between 1851 and 2013 there…
A: Given The total number of hurricanes between 1851 and 2013 are 290. The frequency table for…
Q: What is the probability that six or more adults from this sample were between 25 and 34 years old?
A: Given that n = 9 , p = 25% = 0.25 , q = 1 - p = 1 - 0.25 = 0.75 X ~ Binomial (n = 9 , p = 0.25) X =…
Q: An online quiz has 10 True or False questions. What is the probability that a student got exactly…
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Q: What is the probability that fewer than three adults from this sample were between 25 and 34 years…
A: Given that
Q: A recent study found that 40% of all people over age of 62 is selected. If a random sample of 5…
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Q: find the probability that exactly 2 people willget enough sleep each night?
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Q: In a study of blood donors, 125 were classified as group O and 195 had a classification other than…
A: The objective of this question is to find the probability that a blood donor will have group O…
Q: Tomorrow you have an exam that consists of 10 questions. If a question is hard, you can answer it…
A: Given information: P(correctly answered| question is hard)=0.01 P(correctly answered| question if…
Q: What is the probability that a randomly selected score exceeds 1170?
A: Let X be the SAT score ( for verbal and math).It is given that X has normal distribution with mean…
Q: It is reported that 77.71% of working women use computers at work. Choose 11 working women at…
A: The random variable X follows binomial distribution. We have to find the probability that all 11 use…
Q: A survey showed that 82% of adults need correction (eyeglasses, contacts, surgery, etc.) for their…
A: 82% of adults need correction (eyeglasses, contacts, surgery, etc.) for their eyesight. 19 adults…
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: A market research organization surveyed 102 people and found that 73 of them would like more…
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Q: Suppose that 54% of people own dogs. If you pick two people at random, what is the probability that…
A: The probability of this event is independent of each other of final probability will be the product…
Q: If 25 male college students are randomly selected, find the probability that their mean weight gain…
A: It is given that the mean is 1.2 and standard deviation is 5.6.
Q: It is known that 15% of the seniors in a large high school will enter military service upon…
A: Given,15% of the seniors in a large high school will enter military service upon graduation. That…
Q: Last Fall Semester, 36% of freshmen who applied for football season tickets did not receive tickets…
A: Obtain the probability that more than 40% of those sampled did not receive tickets for all home…
Q: The centers for disease control reported that 16% of college aged individuals used vapes in…
A: Given information Probability of using vapes = 0.16 No of individuals n = 750 Probability that less…
Q: ur out of five Filipinos under the age of 30 eat rice for breakfast. If a ndom sample of 15 adults…
A: We have given that Sample size n= 15 Success of probability = 4/5= 0.80 X~binomial ( n,p)
Q: If the estimated mean of crashes at intersection is 10, what is the probability of having 5, 10 and…
A: Given the estimated mean of crashes at an intersection is; μ=10 Let, X = The number of crashes next…
Q: Should the one-tailed or the two-tailed probability be used to assess performance of the students?
A: The tail of the test depends on the alternative hypothesis of the test. The possible alternative…
Q: Recently, the top web browser had 57.41% of the market. In a random sample of 200 people, what is…
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Q: Find the probability of meeting at least one left handed person in 8 person encounter on campus when…
A: Given Information Probability of left-handed person = 0.11
Q: The probability that a randomly selected 40-year-old female will live to be 41 years old is 0.988…
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Q: It was reported that 29% of car crash deaths in Maine were alcohol-related.…
A: Obtain the probability that at most 14 were alcohol-related. The probability that at most 14 were…
Q: According to the Center for Disease Control (CDC), the percentage of boys who are diagnosed with…
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Q: According to a safety engineer, barely 40% of all workers wear safety helmets when eating lunch at…
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Q: What is the probability of randomly selecting someone whose heart rate either below 60 or above 90?
A: Population mean, = 76Population standard deviation, σ = 5
Q: When making random guesses on an 8 question quiz the probability of guessing correctly on any one…
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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: For a recent year, the Centers for Disease Control reported that the probability that a 50-yr-old…
A: Recall the following fact.
Q: According to the Center for Disease Control (CDC), the percentage of boys who are diagnosed with…
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Q: Current estimates suggest that 80% of the home-based computers in a foreign countr have access to…
A: Given : Probability of success,p = 0.80 Probability of failure,q=(1- 0.80)= 0.2…
Q: What is the probability of recording exactly 3 deaths on the next day?
A: here given, daily mean number of COVID 19 deaths in Metro Manila is 2
Q: In a poll conducted by the General Social Survey, 70% of respondents said that their jobs were…
A: From the provided information,70% of respondents said that their jobs were sometimes or always…
Q: A letter is taken at random out of "ASSISTANT" and out of "STATISTICS". What is the chance that they…
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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
Q: A card is drawn from 52 playing cards. If the card drawn is a diamond card, what is the probability…
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Q: The probability that a randomly selected male aged 90 years old will survive the year is 95.195%…
A: The probability that a randomly selected male aged 90 years old will survive the year is 0.95195.
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- Public Opinion reported that 5% of Americans are afraid of being alone in a house at night. If a random sample of 20 Americans is selected, find the probability that less than 3 people in the sample who are afraid of being alone at night.A quiz consists of 20 true-false questions. What is the probability that a student will answer exactly half of the questions correctly by guessing on all 20 questions?A 2016 survey suggests that 90% of college students have posted a profile on Facebook 78% use Instagram regularly and 72% do both if a college student is selected at random then the probability that a college student uses neither Facebook nor Instagram is?
- Suppose that 82% of the adult between the ages of 18 and 34 watch reality TV shows. Suppose you take a random sample of 3 persons. What is the probability that none of them watch reality TV shows? What is the probability that at least one watches reality TV shows? What is the probability 2 or more watch reality TV shows? If you were to randomly sample 1000 adults between 18 and 34 years of age in the U.S, how many of them do you expect to watch reality TV shows?The Pew Research Center has found that 86% of people 18 through 29 years old are social media users. What is the probability that you have to ask 10 people in this age group to find one that is not a social media user?What is the probability that you have to ask 20 people in this age group to find one that is not a social media user?What is the probability you must ask at most 5 people in this age group to find one that is not a social media user?According to the Center for Disease Control (CDC), the percentage of boys who are diagnosed with autism by the age of 8 is 2.7%. If 150 boys under the age of 8 are randomly selected, find the probability that the average of them being diagnosed with autism is between 2.4% and 3.0%.
- What is the probability of a randomly selected person not having their birthday in September? Use months.It is reported that 54% of internet users have a wireless connection to the internet via laptop cell phone game console or other mobile devices.of these wireless users 25% of use twitter to share updates of themselves. what is the probability that a internet user has a wireless connection and uses twitterBased on observation 85% of the population of adult males wash their hands in a public restroom. In a survey of 523 adult males, 518 reported they washed their hands when using a public restroom. Find the probability that among 523 randomly selected adult males 518 or more wash their hands in a public. restroom. Does it appear that all the people who claimed they washed their hands were telling the truth?