q1- Collina's Italian Cafe in Houston, Texas, advertises that carryout orders take about 25 minutes. Assume that the time required for a carryout order to be ready for customer pickup has an exponential distribution with a mean of 25 minutes. What is the probability that a carryout order will be ready within 20 minutes?

q1- Collina's Italian Cafe in Houston, Texas, advertises that carryout orders take about 25 minutes. Assume that the time required for a carryout order to be ready for customer pickup has an exponential distribution with a mean of 25 minutes. What is the probability that a carryout order will be ready within 20 minutes?

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

Suppose the time a child spends waiting at for the bus as a school bus stop is exponentially distributed with mean 4 minutes. Determine the probability that the child must wait between 2 and 3 minutes on the bus on a given morning.
The magnitudes of earthquakes recorded in a region of North America can be modeled by an exponential distribution with a mean of 2.4 as measured on the Righter scale. Of the next 10 earthquakes to strike this region, find the probability that at least one will exceed 5.0 on the Richter scale.
The waiting time at a railroad crossing follows an exponential distribution, with an average time of 8 minutes, determining the probability of waiting between 2 and 5 minutes.
Based on historical data, on average, Hoboken experiences one flooding event every 2.4 month. Assume that the time between flooding events can be modelled using an exponential distribution. What is the median number of months from now until Hoboken experiences its next flooding event ?
A professor knows that her statistics students' final exam scores have a mean of 79 and a standard deviation of 12.4. In his class, an "A" is any exam score of 90 or higher. This quarter she has 25 students in her class. What is the probability that 7 students or more will score an "A" on the final exam?
The manager of a supermarket tracked the amount of time needed for customers to be served by the cashier. After checking with his statistics professor, he concluded that the checkout times are exponentially distributed with a mean of 5 minutes. What propotion of customers require more than 10 minutes to check out?
0.33 0.41 0,22 0.17
The manager of a gas station has observed that the times required by drivers to fill their car's tank and pay are quite variable. In fact, the times are exponentially distributed with a mean of 7 minutes. What is the probability that a car can complete the transaction in less than 4 minutes? Probability =
On the average, a certain computer part lasts ten years. The length of time the computer part lasts is exponentially distributed. a. What is the probability that a computer part lasts more than 7 years?
The useful life of an electrical component is exponentially distributed with a mean of 4,000 hours. a. What is the probability the circuit will last more than 4,750 hours? b. What is the probability the circuit will last between 4,000 and 4,250 hours? c. What is the probability the circuit will fail within the first 3,750 hours?
We state that the battery of a type of pos device shows an exponential distribution with an average life span of five years in standard use. What is the probability that a user who uses the POS device for three years without battery problem will encounter a battery problem within the next year?
A new automated production process has been averaging 2 breakdowns per day (assume 8 hours of operation per day) . What is the probability that the process can run a full 8-hour shift without a breakdown?