Calculate the probability that exactly 4 thefts occur in an hour.
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: Assume that when adults with smartphones are randomly selected, 47% use them in meetings or classes.…
A: Binomial distribution: A discrete r.v. X taking values 0,1,2,3, …., n is said to follow a binomial…
Q: A writer averages 0.5 errors per page. The number of errors follow a Poisson distribution. Find the…
A: A writer averages 0.5 errors per page.The number of errors following a Poisson distribution.Let X be…
Q: Assume that when adults with smartphones are randomly selected, 60% use them in meetings or…
A:
Q: The probability that a student pilot passes the written test for a private pilot license is 0.7.…
A: Given data : The probability that a student pilot passes the written test for a private pilot…
Q: Assume that when adults with smartphones are randomly selected, 54% use them in meetings or classes.…
A: Given, P(Adults using smart phones in meetings or classes)= p = 54% = 0.54 Sample size n = 5 exactly…
Q: A grocery clerk can serve 20 customers per hour on average and the service time follows an…
A: We have givenλ = 20/60 = 1/3 = 0.33 per minute X ~ Exponential (λ) Since we know that Cdf of…
Q: Assume that when an adult is randomly selected, the probability that they do not require vision…
A: Given:Let’s p is the probability that they do not require vision correction is 24%.So, p=0.24.Sample…
Q: The amount of time, in seconds, a cashier spends with a customer during lunch time at a fast food…
A: Suppose the random variable x defines the amount of time, in seconds, a cashier spends with a…
Q: The table summarizes results from 987 pedestrian deaths that were caused by autornobile accidents.…
A:
Q: Assume that when adults with smartphones are randomly selected, 42% use them in meetings or classes.…
A: Let X be the random variable from binomial distribution with probability (p) = 42% = 0.42 and sample…
Q: The probability a child is born with Down Syndrome when the birth mother is 40 years old is 0.01.…
A: The relative frequency of a particular class or observation can be obtained by dividing the…
Q: Assume that when adults with smartphones are randomly selected 52% use them in meetings or classes.…
A:
Q: The waiting time at a grocery checkout has an exponential distribution with mean of 9 minutes. What…
A:
Q: Calculate the probability that one of the next 6,827 times the slot machine is played, a jackpot is…
A: Here given , The chance of winning a jackpot on a certain slot machine is 1/17500 . Next 6827…
Q: Assume that when adults with smartphones are randomly selected, 55% use them in meetings or classes.…
A: It is given that the random variable X i.e, smartphones in meetings or classes follows Binomial…
Q: The amount of time, in seconds, a cashier spends with a customer during lunch time at a fast food…
A: The average amount of time spent with a customer is 160 seconds.
Q: at exactly 2 of them use their smartphones in meetings or classes.
A: Given that 39% of adults using smartphones in meetings or classes. P= 0.39 Random sample size (n) =…
Q: Lou Gehrig has a lifetime batting average of 0.34. Assume that Lou Gehrig came to bat officially…
A: Lou Gehrig has a lifetime batting average of 0.34. Lou Gehrig came to bat officially three times…
Q: The time between aircraft landing at a local airport has an exponential distribution with a mean of…
A: Let X=The time between aircraft landing at a local airport Given that X follows an exponential…
Q: The probability that a student pilot passes the written test for a private pilot's license is 0.55.…
A: Probability distributions are of two types, discrete and continuous distributions. Binomial…
Q: Assume that when an adult is randomly selected, the probability that they do not require vision…
A: The probability that exactly 3 of them do not require a vision correction is obtained below:Here, do…
Q: The amount of time a customer spends in a convenience store can be modeled by an exponential…
A:
Q: The probability that a person living in a city owns a pet is estimated to be 0.2. Find the…
A: Independent Events: Let A1, A2, ... , An be n independent events with P(Ai) > 0 for all i = 1, 2,…
Q: The local weather forecast has been accurate for 15 of the past 27 days. Based on this fact, what is…
A: Given, Total no of days n = 27 No of days with accurate forecast x = 15
Q: The random variable X designates to time between calls to the emergency telephone number 911 The…
A:
Q: Assume that when adults with smartphones are randomly selected, 39%use them in meetings or classes.…
A: Let us assume X= the number of persons who uses smartphones in meetings or classes n= number of…
Q: Suppose that the life span of a certain automobile tire is normally distributed, with μ = 25, 000…
A: Let X denote the life span of a certain automobile tire.Given that X follows a normal distribution…
Q: Assume that when adults with smartphones are randomly selected, 36% use them in meetings or classes.…
A: We have to find given probability..
Q: Suppose the time it takes a cashier to serve a customer follows an exponential distribution with a…
A: given data service time : μ = 3 minutes λ = 13 per minute
Q: ssume that when adults with smartphones are randomly selected, 45% use them in meetings or classes.…
A: given data, p(use smartphones in meeting or classes)=p=0.45q=1-p=1-0.45=0.55n=8x= no. of smartphone…
Q: Suppose a very safe driver has a likelihood of getting into an accident of 1/20 every year.…
A: Given Rate=1/20 every year P(X≥1)=? Let X be the number of accident
Q: A subway train arrives every eight minutes during rush hour. We are interested in the length of time…
A: The question is about continuous prob. distribution Given : The length of time a commuter must wait…
Q: The amount of time people spend at the gym follows a uniform distribution from 45 to 90 minutes.…
A: From the provided information, The amount of time people spend at the gym is uniformly distributed…
Q: A restaurant has 5 lines. Customers being dispatched to each line at a .25 probability. If customers…
A: GivenThe number of lines in restaurant or number of service s=5The customers arrive at the…
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 ,…
Q: Assume that when adults with smartphones are randomly selected, 57% use them in meetings or classes.…
A: Let "X" be the adults who use their smartphone in meeting or classes. I will use excel formula…
Crime reports from 2019 indicate that 6.2 motor vehicle thefts occur each hour in the United States. Assume that the distribution of thefts per hour can be approximated by the Poisson
Calculate the probability that exactly 4 thefts occur in an hour.
![](/static/compass_v2/shared-icons/check-mark.png)
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 3 images
![Blurred answer](/static/compass_v2/solution-images/blurred-answer.jpg)
- Assume that when adults with smartphones are randomly selected, 43% use them in meetings or classes. If 6 adult smartphone users are randomly selected, find the probability that exactly 3 of them use their smartphones in meetings or classes. The probability is . (Round to four decimal places as needed.)In a recent year, an author wrote 198 checks. Use the Poisson distribution to find the probability that on a random day, he wrote at least one check.Assume that when adults with smartphones are randomly selected, 64% use them in meetings or classes. If 9 adult smartphone users are randomly selected, find the probability that exactly 3 of them use their smartphones in meetings or classes. rounded to 4 decimal places if needed
- The time students take to complete an exam follows a uniform distribution and is between 30 minutes and 75 minutes. What is the probability that the time a student takes to complete the exam is between 42 and 63 minutes? Express answer as a percent rounded to 1 decimal.Assume that adults with smartphones are randomly selected, 48% use them in meetings or classes. If 10 adult smartphone users are randomly selected, find the probability that fewer than 4 of them use their smartphone in meetings or classes. The probability is? Round to four decimal places as needed.At a bank, there is a line of 3 people and only one cashier that serves one person at a time. The time that the cashier takes to serve each person has an exponential distribution with a mean of 5 minutes. Calculate the probability that the total time of serving the 3 people is less than 15 minutes. Assume that the serving times are independent.
- The battery life of a mobile device is uniformly distributed between 9 to 12 hours. Find the probability that the battery life will be between 10.5 and 11.5 hours.Assume that when adults with smartphones are randomly selected, 52% use them in meetings or classes. If 25 adult smartphone users are randomly selected, find the probability that exactly 19 of them use their smartphones in meetings or classes. The probability is. (Round to four decimal places as needed.)The probability that a certain type of sea turtle hatching survives until adulthood is assumed to be 1 out of 1,877. If 980 hatchlings incubate in a certain nesting area, calculate the probability that at least 3 survive to adulthood. Use three decimal place accuracy.
- Assume that when an adult is randomly selected, the probability that they do not require vision correction is 17%. If 12 adults are randomly selected, find the probability that exactly 3 of them require vision correction. (round to three decimal places as needed)Suppose the average tread-life of a certain brand of tire is 45,000 miles and that this mileage follows the exponential probability distribution. What is the probability that a randomly selected tire will have a tread-life between 30,000 and 50,000 miles?The number of miles driven each day by a truck driver falls between 300 and 650 and follows a uniform distribution. Find the probability that the truck driver travels at least 500 miles on random selected day
![A First Course in Probability (10th Edition)](https://www.bartleby.com/isbn_cover_images/9780134753119/9780134753119_smallCoverImage.gif)
![A First Course in Probability](https://www.bartleby.com/isbn_cover_images/9780321794772/9780321794772_smallCoverImage.gif)
![A First Course in Probability (10th Edition)](https://www.bartleby.com/isbn_cover_images/9780134753119/9780134753119_smallCoverImage.gif)
![A First Course in Probability](https://www.bartleby.com/isbn_cover_images/9780321794772/9780321794772_smallCoverImage.gif)