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

Probablity, a fair die is thrown 3 times. Let X1,X2,X3 denote the results o...

a fair die is thrown 3 times. Let X1,X2,X3 denote the results of 3 throws. What is the probablity that p[X1>X2+X3]

Time seires, explain time series analysis

explain time series analysis

Cost accounting, Assignment on objective of cost accounting briefly discuss...

Assignment on objective of cost accounting briefly discuss.

Asked in genpact interview, Expenses a/c. Dr. To vendor a/c. Cr. What is a...

Expenses a/c. Dr. To vendor a/c. Cr. What is an impact of this transaction on business

Cost accounting, Job Order Gosting ln an attempt to conceal a thefi of fund...

Job Order Gosting ln an attempt to conceal a thefi of funds, Kaito Kid, controller of Shinichi Products, lnc. placed a bomb in the company s record vault. The ensuing explosion lef

Define Nuclear force, Nuclear force Is a short range force extending upto...

Nuclear force Is a short range force extending upto 10 fm. It is fifty-sixty times stronger than electromagnetic force. Nuclear force is independent of charge. Nuclear force betw

A congruential unit random number generator, Suppose the arrival times of p...

Suppose the arrival times of phone calls in a help centre follow a Poisson process with rate 20 per hour (so the inter-arrival times are independent exponential random variables).

A m, what is the relationship between the variance and the standard deviati...

what is the relationship between the variance and the standard deviation?

Simple Random Selection, What is the properties of a simple random sample w...

What is the properties of a simple random sample when 50 females are numbered 1 through 50, and males are numbered 51 through 100?

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