Analysis of exponential probability distribution

Assignment Help Basic Statistics
Reference no: EM1399966

The time between arrivals of customers at the drive-up window of a bank follows an exponential probability distribution with a mean of 10 minutes.

a. What is the probability that the arrival time between customers will be 7 minutes or less?

b. What is the probability that the arrival time between customers will be between 3 and 7 minutes?

Reference no: EM1399966

Questions Cloud

Determining normal distribution-binomial distribution : The records show that 8% of the items produced by a machine do not meet the specifications. Use the normal approximation to the binomial distribution to answer the following questions.
Confidence interval for the mean time spent : Also, the sample data appear to have a bell-shaped distribution. Construct the 95% confidence interval for the mean time spent on paperwork by all managers.
How can humans benefit from stem cells : There must be some major drawbacks t the widespread use of non-embryonic stem cells. What are those draw backs?
Advise huang of his legal - contractual rights : Huang now wishes to sue Bill for breach of his building contract and to claim from Bill the sum of $150,000 that he says has resulted from Bill's breach of the contract and advise Huang of his legal/contractual rights.
Analysis of exponential probability distribution : The time between arrivals of customers at the drive-up window of a bank follows an exponential probability distribution with a mean of 10 minutes.
Point flat-of-curve medicine : Indicate at which point flat-of-curve medicine is experienced in the following example (imagine that antibiotics have been prescribed for a given population of 1,000 elderly persons).
Identifying potential qualified customers : Following the seven steps in selling: Begin by listing the steps, then explain in your own words the meaning of each step. Create a scenario or example of how you would use all steps to complete a sale.
Sketch a typical batch culture growth curve : sketch a typical batch culture growth curve as it would appear on semi-log paper and indicate a time of addition of each of these antibiotics and their effect on growth relative to the normal growth curve.
Probability-detecting income missile : Assume that a single radar unit used to detect incoming missiles has a probability of 0.90 of correctly detecting an incoming missile attack.

Reviews

Write a Review

Basic Statistics Questions & Answers

  Drawing a card and getting a spade

What are the odds against drawing a card from an ordinary deck of cards and getting a spade?

  Determining probability that to grab matching pair

If you arbitrarily grab 2 socks out of drawer determine the probability that you grab a matching pair?

  Scores for group-participation different from population

Does this sample give sufficient evidence to conclude that self-esteem scores for group-participation adolescents are significantly different from those of general population? Use two-tailed test with α = .01.

  Returns and standard deviation

What is the explained return on an equally weighted portfolio of these three stocks? What is the variance of a portfolio invested 20 percent each in A and B and 40 percent in C?

  Determining probability of a mean

A population has a mean of 53 and a standard deviation of 21. A sample of 49 observations will be taken what is the probability that the sample mean will be greater than 57.95?

  Studying to reduce the maximum error of estimate

How do you solve this problem: a researcher conducted a study of the access speed of 50 hard drives and concluded that his maximum error of estimate was 24.

  A arbitrary sample of students is selecte

A arbitrary sample of 8 students is selected. Illucidate the probability that among the students in the sample at least 7 are female.

  Average salary

For each of the 50 states and Washington, D.C., a number of statistics related to education are available for 1992

  Multiple regression model

where the deviations εi are assumed to be independent and Normally distributed with mean 0 and standard deviation σ. This model was fit to the data using the method of least squares. The following results were obtained from statistical software.

  Mean annual salary of the employees of the business

The mean salary of the nine employees of a small business is $52,000 per year. One employee, whose salary was $68,000, was red. Two new employees, who will each be paid a salary of $40,000, are hired. What is the new mean annual salary of the emp..

  Sampling frame-matching population

In each of the following situations, the sampling frame does not match the population, resulting in undercoverage. Give examples of population members that might have been omitted:

  Significant correlation among attitudes for husbands - wives

Calculate the Pearson correlation for these data also determine whether there is a significant correlation among attitudes for husbands also wives.

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd