normal distribution, Basic Statistics


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)?
Posted Date: 4/27/2013 2:22:57 AM | Location : Australia







Related Discussions:- normal distribution, Assignment Help, Ask Question on normal distribution, Get Answer, Expert's Help, normal distribution Discussions

Write discussion on normal distribution
Your posts are moderated
Related Questions
SPSS Assignment 1. Execute the following functions using SPSS.  a) Enter the following data Case Age Weight Gender

#how will understand question..moving average method problems for 4yearly&5yearly also

how can i get a free software to run a kolmogorov test?

Advanced Equipment leased equipment to Richards Chemical, Inc. on 9/30/11. Advanced purchased the machine from Makers, Inc. at a cost of $6M. The 5-yr lease agreement calls for R

Define Mortality: The following rates are used for measuring mortality. Crude death rate The annual crude death rate is defined as  Crude death rate = annual deaths / annual

Question 1. In 2009, Research New Zealand conducted a survey on small businesses in New Zealand. Small businesses were defined as enterprises with 19 or fewer employees. 501 small

What is job costing? Definition of job costing, Job costing usually, it is the allocation of all material, time & expenses to an individual project or job. Particularly, Jobs costi

does interest realized come under debit or credit side of trial balance pleases i need answer

The Stalk Market, an independent grocery chain, has been serving and supporting local communities for over 90 years. Its stores offer friendly service and a wide assortment of natu