normal distribution, Basic Statistics

Assignment Help:

Lifts usually have signs indicating their maximum capacity. Consider a sign in a lift that reads “maximum capacity 1400kg or 20 persons”. Suppose that the weights of lift-users are normally distributed with a mean of 65kg and a standard deviation of 10kg.

(a) What is the probability that a lift-user will weigh more than 70kg?

(b) What is the probability that a lift-user will weigh between 60 and 75kg?

(c) What is the probability that 20 people will exceed the weight limit of 1400kg?

(d) What is the probability that 25 people will not exceed the weight limit (Use Excel to
calculate probability to 6 decimal places)?

Related Discussions:- normal distribution

Precious harper, October Transactions Date Transaction Description Oct. 1 ...

October Transactions Date Transaction Description Oct. 1 Began business by making a deposit in a company bank account of $12,000, in exchange for 1,200 shares of $10 par value com

Inventory control, Inventory control Inventory Control is the guidance of ...

Inventory control Inventory Control is the guidance of provide, storage and convenience of items to ensure an adequate provide without excessive oversupply. It can also be known a

Normal distribution, Lifts usually have signs indicating their maximum capa...

Lifts usually have signs indicating their maximum capacity. Consider a sign in a lift that reads “maximum capacity 1400kg or 20 persons”. Suppose that the weights of lift-users are

Describe the relationship between gender and course of study, In Ireland, D...

In Ireland, Davoren et el (2015) report that that 65.2% of male University students self-reported alcohol consumption levels which are classified as hazardous. A random sample of

Define why equipment show up on a profit and loss statement, Define why Equ...

Define why Equipment show up on a profit and loss statement? The buy of devices that will be used in a business is not revealed on the revenue and reduction declaration. Howeve

State income tax, State income tax In most declares paycheck accounting...

State income tax In most declares paycheck accounting will involve a condition earnings tax. In those declares a company is necessary to hold the condition earnings tax that an

Karl Pearsons, ). Calculate Karl Pearson’s coefficient of correlation from...

). Calculate Karl Pearson’s coefficient of correlation from the following data , using 20 as the working mean for price and 70 as the working mean for demand: Price: 14 16 17 18 1

T, #how will understand question..moving average method problems for 4year...

#how will understand question..moving average method problems for 4yearly&5yearly also

Historigram, what is historigram in statistics please give the problems and...

what is historigram in statistics please give the problems and there solution in statistics as soon as possible

Write Your Message!

Captcha
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