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

Asset, what''s the asset?

what''s the asset?

Corporate B onds/Preffered Stocks, What is the complete answer and files fo...

What is the complete answer and files for this document

Financial statements, Write a report to an investor by comparing the financ...

Write a report to an investor by comparing the financial statements for two different companies

Standard deviation, the first four moments of a distribution about the mean...

the first four moments of a distribution about the mean are 0,16,-64 and 162.what is the standard deviation ?

Statistis, Mention the characteristics of Statistics. Explain any two appli...

Mention the characteristics of Statistics. Explain any two applications of Statistics.

Covariance , how can write co variance using summation notation

how can write co variance using summation notation

Define Ancillary costs, Define Ancillary costs Expenditures that is direct...

Define Ancillary costs Expenditures that is directly attributable to resource acquisition, such as freight and transportation costs, site preparation costs, and professional charg

Why Agency code is useful, Why Agency code is useful The four personality n...

Why Agency code is useful The four personality number code allocated by the Workplace of Economical Control to select the unique business models of condition. Organization requirem

Computing observed probability values , For an alignment shown below derive...

For an alignment shown below derive log-odds score for the column 1 only by a)  Computing observed probability values b)  Expected probability values TAGCTT AAGCTC T

A congruential unit random number generator, Suppose the arrival times of p...

Suppose the arrival times of phone calls in a help centre follow a Poisson process with rate 20 per hour (so the inter-arrival times are independent exponential random variables).

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