What is the probability that there are between 26 and 35 messages in the next hour? 2. What is the probability that there are exactly 30 messages in the next two hours? 3. What is the average for the variable, T?

Q: The number of accidents that occur at a busy intersection is Poisson distributed with a mean of 4…

A: given data poisson distributionμ = 4 per week λ= 47 per dayx =  no. of accidents in t daysP(x=X) =…

Q: Suppose that the number of car accidents per day in Wilmington, NC has been recorded for the past…

A:

Q: Provide an appropriate response. The random variable x represents the number of computers that…

A: Mean E[x] = ∑xP(x)

Q: Of the 12 times a bird lands in a tree, he chooses a red maple 4 times. Find the empirical…

A: Given that of the 12 times a bird lands in a tree, he chooses a red maple 4 times. We have to find…

Q: Determine the probability that the professor asks the class 9 times in one session. Let X be the…

A: Here use poission process  And given that The number of times the professor asked the class "how are…

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: A radio station 10 song requests per day. Determine the probability that it receives 18 song…

A: Let X be the number of song requests in a week which follows Poisson distribution with a mean 10…

Q: ohn surfs the website on a regular basis. Suppose the time he spent surfing the website per day is…

A: Given that  The time he spent surfing the website per day is normally distributed. Mean (µ ) = 8…

Q: Suppose there is spinner spun two times, the probability of landing on the 1 is 65% The probability…

A: Probability of an event is computed by taking the ratio of number of favourable outcomes to total…

Q: 4. An average of 35 fish per day enter the intake pipe of a water treatment plant. A hydraulic…

A:

Q: class consisting of 50 students had their grades handed out by their professor. Nine of the…

A: Given that  Frequency distribution table  X 1.00 1.25 1.50 1.75 Frequency  9 8 12 21

Q: Suppose that a coin is to be tossed four times, and let X represent the number of tails that occur.…

A: It is given that X represents the number of tails when a coin is tossed four time, then the possible…

Q: Suppose that about 85% of graduating students attend their graduation. A group of 22 graduating…

A:

Q: There are 7 skiers and 3 skaters in the group of athletes. Three athletes were randomly selected…

A: Given that  Total athletes=7+3=10 Athletes are skiers=7 Athletes are skaters=3 3 Athletes are…

Q: Suppose that the number of cars crossing a bridge per day follows a Poisson distribution with an…

A:

Q: From the population consisting of 20, 80, and 100. A sample of size 2 will be taken with…

A: The population is 20, 80 and 100.

Q: The number X of people entering the intensive care unit (ICU) in a particular Hospital on any one…

A: Number of people entering on any one day = 3, then Number of people entering on any two days = 2 × 3…

Q: The number of defective parts produced per shift can be modeled using a dis random variable. Assume…

A: Let us define the random variable X as the number of defective parts produced follows Poisson…

Q: The Random Variable X counts the number of students in a 23 person class who passed an exam. If the…

A: The Random Variable X counts the number of students in a 23 person class who passed an exam.  If the…

Q: The traffic data of New York City on New Year's Eve shows that the probability of a person having a…

A:

Q: the duration of a professor's class has a uniform distribution between 50.0 minutes and 52.0…

A: It is given that the duration of the professor’s class follows U(50,52).

Q: Consider a population with 3 observations: 6, 10 and 12. You use simple random sampling without…

A: Given : Population size (N)=3 6 10 12 Sample size (n)=2

Q: During the 2013 regular NBA season, DeAndre Jordan of the Los Angeles Clippers had the highest field…

A: In the given problem we have given that, During the 2013 regular NBA season, DeAndre Jordan of the…

Q: In statistics a random variable is one that will take a value not known now with certainty. Which of…

A: A random variable is a function whose value takes several values with same or different…

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: he number of accidents that occur at a busy intersection is Poisson distributed with a mean of 4 per…

A: Given,  number of accidents per week (lamda)=4   Poission distribution is P(X=x)=e-lamda*lamdaxx!

Q: A population proportion is 0.5. Suppose a random sample of 658 items is sampled randomly from this…

A: Given that : Population proportion =0.5 Random Sample =658

Q: The mean of childhood asthma prevalence in 43 cities is 2.32%. A random sample of 32 of these cities…

A: Given : mean = μ = 2.32% S.D = σ =1.30% Sample size = n = 32 PX¯>2.8 =1-PX¯≤2.8 PX¯ >2.8…

Q: 4. An average of 35 fish per day enter the intake pipe of a water treatment plant. A hydraulic…

A:

Q: 10.5% of the population is 65 or older. Find the probability that the following number of persons…

A: Given, 10.5% of the population is 65 or older. The probability mass function (pmf) of a binomial…

Q: Q.It has been found that on an average the number of mistakes per typed page of a typist is 1.5.…

A:

Q: Suppose a coin and a die are tossed. Let X be the random variable representing an even number.…

A: Here the coin and die are tossing simultaneously. Here the sample space , S = {(1,H) , (1,T) , (2,H)…

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…

Q: A teacher recorded the number of absentees for 15 days. The following are his observations: Number…

A: Solution: 4. Let X be the number of absentees. From the given information,

Q: 20% of all people are O negative. If 12 people donate blood at the blood drive 1. The probability…

A:

Q: The number of accidents at a certain intersection is a Poisson random variable. The probability that…

A: we have given that  The probability that there are 2 accidents in any given week is 3 times as much…

Q: A recent survey in Montana revealed that 20% of the vehicles traveling on highways, where speed…

A: From the provided information,Probability of the vehicles travelling on highways, where speed limits…

Q: Suppose that 42% of people are on low calorie diet. If you pick three people at random, what is the…

A:

Q: stock prices has a 0.6 probability of rising in any year. The change in the value of the index in…

A: According to the Bartleby guidelines experts solve only one question and a maximum of three sub…

Q: Q3. A hospital switch board receives an average of 3 emergency calls in 10 minutes interval. What is…

A: Obtain the probability that there are exactly 2 emergency calls. The probability that there are…

Q: Suppose that a box contains 8 cameras and that 4 of them are defective. A sample of 2 cameras is…

A: Given that a box contains 8 cameras and that 4 of them are defective. P(Defective) = 0.50 A sample…

Q: woman has in her lifetime is 1.37. Suppose that one Japanese woman is randomly chosen.  In words,…

A: It is given that the average number of children a Japanese woman has in her lifetime is 1.37.Note:…