Luggage weight and the standard deviation

Reference no: EM13966461

The mean weight of luggage checked by a randomly selected tourist-class passenger ying between two cities on a certain airline is 40 lb, and the standard deviation is 10 lb. The mean and standard deviation for a business-class passenger are 30 lb and 6 lb, respectively.

a. If there are 12 business-class passengers and 50 tourist-class passengers on a particular light, what are the expected value of total luggage weight and the standard deviation of total luggage weight?

b. If individual luggage weights are independent, normally distributed rv s, what is the probability that total luggage weight is at most 2500 lb?

Reference no: EM13966461

Questions Cloud

Can an employer make an organization english speaking only : Can an employer make an organization "english speaking" only? Does this discriminate against those potential new hires who speak english as a second language, or not at all?

Find the percentage of vibration received by the transmitter : An aircraft radio transmitter weighs 26 kg and is mounted on five springs with deflection 8 mm when the transmitter is placed upon them. Neglecting damping, find the percentage of vibration received by the transmitter for engine speeds of 1500 rpm..

Discuss three of the governor''s legislative powers : Discuss three of the governor's legislative powers. Explain which power is most important and why.

What level in the organization do you become strategic : What is the difference between a person doing the daily operations of a human resource function versus the role of a strategic human resource partner? At what level in the organization do you become strategic?

Luggage weight and the standard deviation : If there are 12 business-class passengers and 50 tourist-class passengers on a particular light, what are the expected value of total luggage weight and the standard deviation of total luggage weight?

What are the basic steps and components : What are the basic steps and components needed to evaluate submitted proposals?

Repeated injury and usurpation : After stating 3 different "repeated injury and usurpations" in the Declaration of Independent please briefly explain why the US constitution is referred as a "living constitution"; please provide at least two different examples on how the original pr..

National security versus criminal justice : Please complete a essay response to the following question. There should be no less than 3 full pages and no more than 4 full pages (of content not including the cover and reference pages). You are to provide a brief summary of the documents read t..

Role of a strategic human resource partner : Compare and contrast the role of a strategic Human Resource Partner in a national and global organization.

User Account

All Pages