From the all-aboard dept. A subway stops at University Station every 30 minutes. The time that a person who walks to the station at a random time has to wait is distributed uniformly on the interval [0, 30] minutes.
a) What is the probability that a person who walks to the station at a random time has to wait less than 10 minutes?
b) What is the probability that the person has to wait between 4 and 16 minutes?
c) What is the average wait time?
From the all-aboard dept. A subway stops at University Station every 30 minutes. The time that...
Please
77. A subway train on the 4 line arrives every sight minutes during rush hour. We are interested in the length of time a commuter must wait for a train to arrive.The time follows a uniform distribution. 1. Define the random variable. X_ 2. Х~ 3. Graph the probability distribution 7. 8. Find the probability that the commuter waits less than one minute. Find the probability that the commuter waits between three and four minutes. 9. Siorty percent of...
The amount of time, in minutes, that a person must wait for a bus is uniformly distributed between 0 and 15 minutes, inclusive. 1. What is the standard deviation of the distribution? Q is normally distributed with a mean of 100 and a standard deviation of 15. 1. What is the probability that a person chosen at random has an IQ less than 80?
The waiting times between a subway departure schedule and the arrival of a passenger are uniformly distributed between 0 and 5 minutes. Find the probability that a randomly selected passenger has a walting time less than 3.75 minutes. Find the probability that a randomly selected passenger has a waiting time less than 3.75 minutes_______
The waiting times between a subway departure schedule and the arrival of a passenger are uniformly distributed between 0 and 9 minutes. Find the probability that a randomly selected passenger has a waiting time less than 2.75 minutes. Find the probability that a randomly selected passenger has a waiting time less than 2.75 minutes. _______ (Simplify your answer. Round to three decimal places as needed.)
Can someone explain all these
questions?
B5. In order to go to university a student needs to catch a train at 8:41a.m. every morning. Cycling to the station from home takes the student on average 14 minutes, with a standard deviation of 3 minutes. You can assume that the distribution of trip times is normally distributed and independent between days i) What is the probability that the student's cycle ride to the station will take more than 21 4 marks...
A person arrives at a bus stop each morning. The waiting time, in minutes, for a bus to arrive is uniformly distributed on the interval (0,15). a. What is the probability that the waiting time is less than 5 minutes? b. Suppose the waiting times on different mornings are independent. What is the probability that the waiting time is less than 5 minutes on exactly 4 of 10 mornings?
If a person takes the bus 30 times a month commuting between his dorm and the Dining Hall. It takes the bus 10 minutes to run one loop. The waiting time, in minutes, for a bus to arrive is uniformly distributed on the interval [0, 10]. Suppose that waiting times on different occasions are independent. What is the standard deviation of the mean waiting time in minutes of a month? Round your answer to three decimal digits. What is the...
Math 3023
Homework # 04
Spring 2018
Prairie View A & M University
Name:
___________________________
(1). The amount of time, in minutes, that a person must wait for
a bus is uniformly distributed between 0 and 15 minutes,
inclusive.
(a). On the average, how long must
a person wait? [Hint: Find the mean (expected value)]
(b). Find the standard deviation of
the r.v.?
(c). Ninety percent of the time,
the time a person must wait falls below...
A bus comes by every 14 minutes. The times from when a person arives at the busstop until the bus arrives follows a Uniform distribution from 0 to 14 minutes. A person arrives at the bus stop at a randomly selected time. Round to 4 decimal places where possible. c. The probability that the person will wait more than 4 minutes is _____ d. Suppose that the person has already been waiting for 0.5 minutes. Find the probability that the...
1. The mean wait time at Social Security Offices is 25 minutes with a standard deviation of 11 minutes. Use this information to answer the following questions: A. If you randomly select 40 people what is the probability that their average wait time will be more than 27 minutes? B. If you randomly select 75 people what is the probability that their average wait time will be between 23 and 26 minutes? C. If you randomly select 100 people what...