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

Frequency distribution, Ask questionadvantage and disadvantage of frequency...

Ask questionadvantage and disadvantage of frequency distribution #Minimum 100 words accepted#

Autocorrelation, at what p-value do we reject the null hypothesis for the D...

at what p-value do we reject the null hypothesis for the Dublin-Watson test

Depression screening measures , A study of a new anti-depressant drug took ...

A study of a new anti-depressant drug took a sample of 10 individuals with high depression screening measures (DSM) and gave them the drug for three months.  At the end of the thre

Concept of depreciation briefly, concept of Depreciation briefly. The pr...

concept of Depreciation briefly. The primary idea of the Depreciation is to create off the value of worried resources by a certain amount as per prescribed. Devaluation is incur

Journalizing confusing transaction, How would you journalize this transacti...

How would you journalize this transaction? Purchased used truck for $6,240, paying $3,120 cash and the balance on account.

Observe value of the appropriate test statistic, As part of a study of corp...

As part of a study of corporate employees, the Director of Human Resources for PNC wants to compare the distance travelled to work by employees at their office in downtown Edmonton

What is a purchase return, What is a purchase return? A buy purchase re...

What is a purchase return? A buy purchase return occurs when a buyer profits products that it has bought from a provider. Under the regular inventory system, the cost of the

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