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

Authorized travel period , Authorized travel period Then period when the ...

Authorized travel period Then period when the visitor is in authorized travel position away from the established stop and established property. Talk about OFFICIAL STATION, OFFIC

Aggressive growth fund, Define Aggressive Growth Fund: A mutual fund which ...

Define Aggressive Growth Fund: A mutual fund which is primary investment intention is substantial capital gains. The return & principal value of mutual funds fluctuate with changes

Difference between estimated proportions of business owners, Question 1. In...

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

To find first quartile, how to find 1st quartile from the graph of more tha...

how to find 1st quartile from the graph of more than ogive type, please reply me with an example

Binomial probability distribution, if the probability of getting caught cop...

if the probability of getting caught copying someone else s exam is 0.2 find the probability of not getting caught in 3 attempts assume independence

Determine the price rate-demand , SkyyMarley Airlines has determined that t...

SkyyMarley Airlines has determined that the price elasticity of demand for two customer segments (Coach and Business Class) is -1.35 and -2.50.  Based on their expectations of prof

Test retest reliability, i have a scaled data on multiple questions from tw...

i have a scaled data on multiple questions from two different tests taken at different times for the same respondents, and now i want to calculate the reliability test manually but

Correlation and regression, What is regression analysis ? Discuss the relat...

What is regression analysis ? Discuss the relation between ''correlation coefficient'' and the ''regression coefficients''?

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