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

Data for ogive graph, Data for ogive graph in sectors of indian economy

Data for ogive graph in sectors of indian economy

Plot a histogram of sample hypnotized, Computer Project for Student Exam Sc...

Computer Project for Student Exam Scores The data in the excel spread sheet titled Data for Hypothesis Testing in the column titled Scores from Student Population represents m

Explain accounting methods, Define various methods in accounting, specifica...

Define various methods in accounting, specifications and procedures.

Time series, discuss the nature and causes of the components of an economic...

discuss the nature and causes of the components of an economic time series?

Linear power supply, Linear Power Supply Uses a transformer to convert volt...

Linear Power Supply Uses a transformer to convert voltage from the mains (wall outlet) to a different voltage. With a transformer present, almost any voltage can be obtained. If a

Surveys through schedules, Under this methods the enumerators are appointed...

Under this methods the enumerators are appointed and given training. They are provided with schedules containing relevant questions. These enumerators go to respondents with the

Cost accounting, I have 8 problems that I need help with. I will need to up...

I have 8 problems that I need help with. I will need to upload the files. Thanks

#title.Arithmatic mean., If the mean of first 5 no. is 60 and mean of last ...

If the mean of first 5 no. is 60 and mean of last 5 no. is 55 then what is the 5th no.

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