Suppose that the commuting time on a particular train is uniformly distributed between 50 and 70 minutes. a. What is the probability that the commuting time will be less than 58 minutes? b. What is the probability that the commuting time will be between 56 and 62 minutes? c. What is the probability that the commuting time will be greater than 56 minutes? d. What are the mean and standard deviation of the commuting time? a. The probability that the commuting time will be less than 58 minutes is (Type an integer or a decimal.)

Q: 2. The GMAT scores of this year's test takers are normally distributed with a mean of 450 and a…

A: Given that  Mean=M=450, Standard deviation=S=25 Note: According to bartelby question answer…

Q: In 2014, the per capita consumption of soft drinks in the United States was reported to be 42.1…

A: Hey, since there are multiple subparts posted, we will answer the first three subparts. If you want…

Q: An automatic machine in a manufacturing process is operating properly if the lengths of an important…

A: From the given information, μ=115σ=5.4 A) The probability that one selected subcomponent is longer…

Q: 82. The switchboard in a Minneapolis law office gets an average of 5.5 incoming phone calls during…

A: Hi thank you  for posting  this  question,  since  you gave posted multiple  subparts we have solve…

Q: 3. The weight of house cats is normally distributed with a mean weight of 13 pounds and a standard…

A: Given : μ = 13 σ = 2.9 Let the weight of house cats be X. X ~ Normal(μ = 13, σ = 2.9)

Q: automatic machine in a manufacturing process is operating properly if the lengths of an important…

A: Given Data Population Mean,μ = 115.0 Population Standard Deviation,σ = 5.4

Q: a. The probability that the commuting time will be less than 51 minutes is 0.5 (Type an integer or a…

A: It is given that the random variable X follows Uniform distribution i.e.,X ~ U(a,b)a = 41  , b =…

Q: d. The standard deviation is e. Find the probability that the time will be at most 13 minutes. f.…

A:

Q: High school girls average 80 text messages daily. Assume the population standard deviation is 15…

A: Given information:

Q: The service time for customers coming through a checkout counter has mean 128 seconds and standard…

A: Let, X=The service time for customers coming through a check out counter Given that X follows a…

Q: a. Find the mean and standard deviation of X. b. Sketch a graph of the probability distribution of…

A: X = the number of births in an hour. The average number of births per day = 50 The average number of…

Q: An automatic machine in a manufacturing process is operating properly if the lengths of an important…

A:

Q: a. The probability that the commuting time will be less than 51 minutes is (Type an integer or a…

A: X~U(a,b)a=41  , b=61NOTE:- According to bartleby guidelines expert can solve maximum three subpart…

Q: a. What percentage of students scored less than 68? b. What is the probability that a student scored…

A: Let , X→N(μ=88 , σ=11) , n=2500 Our aim is to find the following : a) P(X<68) b) P(66<X<82)…

Q: The Brac University Basketball Team is looking for new players to join the team. The heights of all…

A: (a) Let H be the random variable depicting the heights of all the try out participants. H~N167,25…

Q: Assume that the standard deviation of monthly rents paid by students in a particular town is $40. A…

A: The standard deviation of monthly rents paid by students in a particular town is σ=40 Random sample…

Q: .    The reading speed of sixth-grade students is approximately normal. With a mean speed of 125…

A: Let X denote the reading speed of sixth-grade students and it follows normal distribution with a…

Q: 2. The average IQ of college students is 126 and the standard deviation is 15. 1. Determine the…

A: Given,Mean μ = 126Standard deviation σ = 15

Q: Suppose that the number of hours that an adult watches in a day has a mean of 2.4 hours and a…

A: Given: i. Calculate the corresponding Z score as follows: The diagram corresponding to the mean…

Q: A class has 12 students registered. On any class time 45% of the students are absent. a. Find the…

A: It is given that the number of students registered in class is 12 and 45% of the students are absent…

Q: One in ten adults in a city visited a doctor last month. If a sample of 6 adults is selected…

A: Given,  One in 10 adults visited a doctor => p = 1/10 = 0.1 Sample size, n = 6 Let X is the…

Q: a. The mean of this distribution is b. The standard deviation is c. The probability that the the…

A: Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: An automatic machine in a manufacturing process is operating properly if the lengths of an important…

A: Given data, μ=113σ=5.7

Q: The switchboard in a Police law office gets an average of 5.7 incoming phone calls during the noon…

A: he switchboard in a Police law office gets an average of 5.7 incoming phone calls during the noon…

Q: According to a recent survey, high school girls average 100 text messages daily. Assume the…

A: GivenMean(μ)=100standard deviation(σ)=20sample size(n)=50

Q: An automatic machine in a manufacturing process is operating properly if the lengths of an important…

A:

Q: 1. The average time a person spends in a library is 30 minutes. The standard deviation is 6 minutes.…

A: Since you have posted multiple questions , we will solve first question for you. To get the…

Q: Assume that the sales of Teri’s Specialty Cakes has historically followed a normal distribution,…

A: Given that mu = 250 ,s.d =15

Q: Suppose that a sample of 15 randomly chosen people were put on a special weight loss diet.  The…

A: