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

Certificate of participation [cop), Certificate of participation [cop) A d...

Certificate of participation [cop) A debt financing agenda administered by the Office of the State Treasurer, A COP is an instrument evidencing a pro rata split in a exact pledged

Luxor case, Susan’s proposed budget for 2011 includes a substantial repayme...

Susan’s proposed budget for 2011 includes a substantial repayment of the bank loan. If the repayment occurs, is the firm likely to break even in 2012? Explain.

Compute the proportion, In 2009, the average number of runs scored in the N...

In 2009, the average number of runs scored in the National League was approximately 4.5 per team. Therefore, a team has done an adequate job with its offense if it scores at least

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

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

Nm, Ask question #Mmnhkinimum 100 words accepted#

Ask question #Mmnhkinimum 100 words accepted#

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

Determine the level of consumption, Suppose an individual has a lifetime ea...

Suppose an individual has a lifetime earnings profile and expects to live for 4 Periods:             Earnings in Period 1:   $30             Earnings in Period 2:   $60

What is an irrevocable letter of credit?, What is an irrevocable letter of ...

What is an irrevocable letter of credit? A permanent mail of credit score is a financial instrument used by banks to guarantee a customer's obligations to a supplier. It is perm

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