# Question: During lunch hour customers arrive at a fast food drive

During lunch hour, customers arrive at a fast food drive through window, on average, every 2.5 minutes. Assume arrival time follows the exponential probability distribution.

a. What is the probability that the next customer will arrive

1. within the next 2 minutes?

2. in more than 5 minutes?

3. between 1 and 4 minutes?

b. Confirm the answers to part a using Excel.

a. What is the probability that the next customer will arrive

1. within the next 2 minutes?

2. in more than 5 minutes?

3. between 1 and 4 minutes?

b. Confirm the answers to part a using Excel.

**View Solution:**## Answer to relevant Questions

A random variable follows the continuous uniform distribution between 20 and 50. a. Calculate the following probabilities for the distribution: 1. P(x < 25) 2. P(x < 30) 3. P(x < 45) 4. P(x = 28) b. What are the mean and ...The time required for housekeeping to clean a hotel room for the next customer varies between 25 and 45 minutes and follows the continuous uniform distribution. a. Calculate the value of f(x). b. What are the mean and ...A random variable follows the normal probability distribution with a mean of 124 and a standard deviation of 27. What is the probability that a randomly selected value from this population a. Is between 100 and 140? b. Is ...The RAD Construction Company has been awarded a contract with the state of Delaware to replace a bridge on Pike Creek Road. Based on experience with previous projects, RAD feels the project completion time follows a normal ...A process produces strings of Christmas tree lights that historically have experienced a defective rate of 4%. A customer has placed an order for 150 strings of lights. Use the normal approximation to the binomial ...Post your question