bank is interested in studying the number of people who use the ATM located outside its office late at night. On average, 1.6 customers walk up to the ATM during any 10 minute interval between 9pm and midnight. a) What is the probability of exactly 3 customers using this ATM during any 10 minute interval? b) What is the probability of 3 or fewer people using this ATM during any 15 minute interval ?

bank is interested in studying the number of people who use the ATM located outside its office late at night. On average, 1.6 customers walk up to the ATM during any 10 minute interval between 9pm and midnight. a) What is the probability of exactly 3 customers using this ATM during any 10 minute interval? b) What is the probability of 3 or fewer people using this ATM during any 15 minute interval ?

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

See similar textbooks

Similar questions

The number of vehicles that a car rental company rents daily is 5. According to this; a)What is the probability of renting up to 2 vehicles? b)What is the probability that 3 vehicles will be hired in any 3 out of the next 5 days?
The average number of cargo ships arriving at a port is known to be 5 per day. The port facility can accommodate at most 8 ships per day. What is the probability that on any given day ships would be turned away and asked to wait in an adjacent harbor?
On average, 5 traffic accidents per month occur at a certain intersection. What is the probability that in any given mohth at this intersection exactly 4 accidents will occur? no accident will occur?
Last semester, a certain professor gave 21 As out of 330 grades. If one of the professor's students from last semester were selected randomly, what is the probability that student received an A? (Assume that each student receives one grade.)
Assume that when adults with smartphones are randomly selected, 43% use them in meetings or classes. If 14 adult smartphone users are randomly selected, find the probability that fewer than 3 of them use their smartphones in meetings or classes. The probability is?
Need help pls!
According to flightstats.com, American Airlines flights from Dallas to Chicago are on time 80% of the time. Suppose 20 flights are randomly selected, and the number of on-time flights is recorded. d) Find and interpret the probability that fewer than 12 flights are on time. (e) Find and interpret the probability that at least 12 flights are on time. (f) Find and interpret the probability that between10 and 12 flights, inclusive, are on time.
Assume that went adults with smartphones are randomly selected, 51% use them in meetings or classes. If 5 adult smartphone users are not randomly selected, find the probability that at least 2 of them use their smartphones in meetings or classes. The probability is
The table below shows the number of deaths in the U.S. in a year due to a variety of causes. For these questions, assume these values are not changing from year to year, and that the population of the United States is 312 million people. Cause Deaths Passenger car occupant 13,100 Motorcycle driver 4,500 Tornado 553 Skydiving 56 c) What is the probability that you will die as a passenger car occupant next year? Make sure your answer is accurate to at least 2 significant figures (values after leading zeros) Question Help: DPost to forum
Assume that when adults with smartphones are randomly selected, 47% use them in meetings or classes. If 11 adult smartphone users are randomly selected, find the probability that fewer than 4 of them use their smartphones in meetings or classes. The probability is..
Assume that when adults with smartphones are randomly selected, 56% use them in meetings or classes. If 77 adult smartphone users are randomly selected, find the probability that exactly 33 of them use their smartphones in meetings or classes. The probability is?
Delta Airlines' flights from Boston to Dallas are on time 60 % of the time. Suppose 13 flights are randomly selected, and the number on-time flights is recorded.1.The probability that at least 9 flights are on time is =2.The probability that at most 8 flights are on time is =3.The probability that exactly 12 flights are on time is =