# statistics

posted by .

A study of checkout lines at the Safeway revealed that between 4-7pm on weekdays there is an average of 4 customers waiting in line. What is the probability that you visit that Safeway during this time period and...
1-no customers are waiting in line?
2-Four customers are waiting?
3-Four or fewer customers are waiting?
4-Four or more customers are waiting?

## Similar Questions

1. ### Stats

A bank with a branch located in a commercial district of a city has developed an improved process for serving customers during the noon-to-1 p.m. lunch period. The waiting time (operationally defined as the time elapsed from when the …
2. ### statistics

1. Observe the number of customers visiting a particular ATM Centre during any day from March 21 to 26, 2011 between 10 a.m. – 12 noon with a time interval of 5 minutes (number of customers using the ATM every 5 minutes). Calculate …
3. ### math

A bank with a branch located in a commercial district of a city has developed an improved process for serving customers during the noon to 1.00 pm lunch period. The waiting time (defined as the time elapsed from when the customer enters …
4. ### Statistics

Data collected on volcanic eruptions give a mean time between eruptions of 29 months. Assume these eruptions occur as a Poisson process in time, find the: (a) Expected number of eruptions during the five-year period beginning from …
5. ### Math-Probability

Data collected on volcanic eruptions give a mean time between eruptions of 29 months. Assume these eruptions occur as a Poisson process in time, find the: (a) Expected number of eruptions during the five-year period beginning from …
6. ### Statistics-Probability

Data collected on volcanic eruptions give a mean time between eruptions of 29 months. Assume these eruptions occur as a Poisson process in time, find the: (a) Expected number of eruptions during the five-year period beginning from …
7. ### Statistics-Probability

Data collected on volcanic eruptions give a mean time between eruptions of 29 months. Assume these eruptions occur as a Poisson process in time, find the: (a) Expected number of eruptions during the five-year period beginning from …
8. ### programming

Consider the following situation - checkout line in a counter. The details are shown as below: i. One check-out line ii. The serving time for every customer is one minute but they may have to wait in line before being served iii. The …
9. ### Statistics

Service times for customers at a post office follow some right-skewed distribution with mean 2.91 minutes and standard deviation 1.74 minutes. (a) Can you calculate the probability that the average service time for the next two customers …
10. ### statistics

An internal study by the Technology Services department at Lahley Electronics revealed company employees receive an average of two emails per hour. Assume the arrival of these emails is approximated by the Poisson distribution. a. …

More Similar Questions