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

Accounting for partnerships and limited liability companies, Singer & Mcman...

Singer & Mcmann are partners in business. Singer''s original capital was $40,000 and Mcmann''s was $60.000. They agree to salaries of $12,000 and $18,00 respectively and 10% inte

statistic assignment, I have statistic assignment can do it at 2.30 H, bec...

I have statistic assignment can do it at 2.30 H, because I don''t have time

Inductive Reasoning to Find Pattern, Use inductive reason to find a pattern...

Use inductive reason to find a pattern for the answers. 9x9=81 99x99=9801 999x999=998001 9999x9999=99980001 99999x99999=?

Survival analysis and regression for rates, This assignment counts for 40% ...

This assignment counts for 40% of the total grade for the subject.  There are 100 marks for the assignment.  Including figures and tables, it should be no more than 10 pages. Yo

Accounting problem, a business was started on January 1, 2011 and $1000 of ...

a business was started on January 1, 2011 and $1000 of supplies to use in the business. At the end of the month 25% of the supplies remains unpaid and 20% are still on hand. what a

SAMPLING mETHOD, A toothpaste company wants to know if its new product incr...

A toothpaste company wants to know if its new product increases the length of time in between dentist visits for its users. The company sets a target of 180 days to determine if it

The correlation coefficient to identify collocations, Would there be a poss...

Would there be a possibility to use the correlation coefficient to identify collocations? Compare with the Chi2 test. • How could we maybe do that?

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