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

I need 10 statistic questions solved, Unfortunately the 10 questions are ti...

Unfortunately the 10 questions are timed and when I send them to you, I MUST have back in 3-1/2 to 4 hours. Can you help?

Spss, SPSS Assignment 1. Execute the following functions using SP...

SPSS Assignment 1. Execute the following functions using SPSS.  a) Enter the following data Case Age Weight Gender

Probability, Mike sells on the average 15 newspapers per week (Monday – Fri...

Mike sells on the average 15 newspapers per week (Monday – Friday). Find the probability that 2.1 In a given week he will sell all the newspapers

Histogram , The following figure shows a histogram of the annual maxima of ...

The following figure shows a histogram of the annual maxima of daily rainfall levels (in millimetres) recorded at Maiquetia international airport, Venezuela, for the years 1952 to

Do a full regression analysis , #questioAssessment Part 2 (70%) You may un...

#questioAssessment Part 2 (70%) You may undertake the analysis of one of the following three case studies: (a) Crime (Minitab project file: CRIM

Stistics, what are the function of statistics in business onganizations?

what are the function of statistics in business onganizations?

Probability, Consider the two events A and B with P(A) = 0.4 and P(B) = 0.3...

Consider the two events A and B with P(A) = 0.4 and P(B) = 0.3. (a) If A and B are independent then compute the probability that Both A and B happen

Probability, A machine that cuts corks for wine bottles operates in such a ...

A machine that cuts corks for wine bottles operates in such a way that the distribution of the diameter of the corks produced is well approximated by a normal distribution with mea

Inventory, An audit of the accounting records of Loch Ness Ltd. for the ye...

An audit of the accounting records of Loch Ness Ltd. for the year ending 30 June 2012 discovered that the ending inventory balance was over-valued by $35,000

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