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

Dc and ac circuit, A sinsodial votage source with 440v peak value dissipate...

A sinsodial votage source with 440v peak value dissipates 4.8kw ina certain resistor. calculate resistor value

Statistical inference, A study was conducted at a major north-eastern Ameri...

A study was conducted at a major north-eastern American medical centre regarding blood cholesterol levels and heart-attack incidents. A total of 28 heart-attack patients had their

Median graph(less than), Marks(less than)-10,20,30,40,50,60,70,80 Number of...

Marks(less than)-10,20,30,40,50,60,70,80 Number of students-4,8,25,34,41,46,50,60 Draw a median graph for the followin

Management accounting, Defination,Advantages and Limitation, Proper Managem...

Defination,Advantages and Limitation, Proper Management of company,

Define Betterment, Define Betterment An inclusion created to, or modify cr...

Define Betterment An inclusion created to, or modify created in, an investment resource, other than servicing, that is estimated to improve its predicted useful life or to improve

reading and display data-affine relation, We start reading and display the...

We start reading and display the data: library (UsingR) data(galileo) g2=galileo$init.h-500 gl=galileo$h.d par(bg='cornsilk') plot(gl,g2,pch=20,col="red",cex=2,yl

Agency funds, Agency funds,define it Organization money is used to account ...

Agency funds,define it Organization money is used to account for the resources presented by the state as an agent for individuals, private companies, and other health systems. Orga

Derive the pure strategy nash equilibrium, There are two firms competing in...

There are two firms competing in quantity. Firm 1 and 2 set their quantities supplied, q1 and q2, respectively. The production costs are zero. The market price is given by

Truss, state the condition followed by dimple truss.

state the condition followed by dimple truss.

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