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

Need help, PART 1 Shown below are the sales revenue and advertising cost da...

PART 1 Shown below are the sales revenue and advertising cost data for seven companies published by International Advertising Age. COMPANY ADVERTISING ($ MILLIONS) SALES ($ BILLION

What is a purchase discount, What is a purchase discount? A buy lower pr...

What is a purchase discount? A buy lower price is a deduction that may be available to a customer if the client will pay an account within a prescribed time. For example, a supp

Interpretation or analysis of financial statements, Interpretation or Analy...

Interpretation or Analysis of Financial Statements. Financial report research (or financial analysis) the procedure of comprehension the possibility and earnings of an organizat

Discovery of Neutron, Discovery of Neutron A neutron is a neutral particle...

Discovery of Neutron A neutron is a neutral particle carrying no charge, and having mass equal roughly to the mass of a proton. This particle was discovered experimentally by Chad

Internatinal business, VK Ltd a multi-product Company, furnishes you the fo...

VK Ltd a multi-product Company, furnishes you the following data relating to the year 2000 First Half of the year Second Half of the year Sales Rs. 45,000 Rs. 50,000 Total Co

Cost accounting test, i need someon to help me do my cost accounting test

i need someon to help me do my cost accounting test

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

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