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

Federal income tax, Federal income tax Another part of paycheck account...

Federal income tax Another part of paycheck accounting involves the staff's got earnings tax. A company is necessary to hold the got earnings tax that and personnel are expecte

Type of correlation, Which type of correlation would be appropriate to calc...

Which type of correlation would be appropriate to calculate for the each of the following sets of data? A.   Correlating gender and year in college (freshman, sophomore, junior,

Quantitative variable, a) Statistics are collecting, organizing, summarizin...

a) Statistics are collecting, organizing, summarizing and presenting a set of data. b)  Inferential statistics is the learn of a sample that enables us to make estimates about t

#piosson ditribution., Ask Suppose that the expected number of phone calls ...

Ask Suppose that the expected number of phone calls that are handel by a switchboard in each second is 5.35. Assume that the distribution of the number of phone calls per second fo

Statement, prof. ya-lu-chan definitions statistices

prof. ya-lu-chan definitions statistices

Moderate negative correlation, I want as much information about moderate ne...

I want as much information about moderate negative correlation.

ANOVA, This problem will introduce the learner into a technique called Anal...

This problem will introduce the learner into a technique called Analysis of Variance. For this course we will only conduct a simple One-Way ANOVA and touch briefly on the importan

Probability, s. All human blood can be "ABO-typed" as one of O, A, B, or AB...

s. All human blood can be "ABO-typed" as one of O, A, B, or AB, but the distribution of the types varies a bit among groups of people. Here is the distribution of blood types for a

Is venus geologically active, Is Venus geologically active? -It is almost ...

Is Venus geologically active? -It is almost certain that Venus, a planet almost of the same size as earth is geologically active. Recent studies show that there is Volcanic and t

Spectral Hydrogen Atom, Long before Bohr gave his theory of hydrogen atom, ...

Long before Bohr gave his theory of hydrogen atom, various scientists had observed experimentally, the spectral series of hydrogen atom. Bohr offered a theoretical explanation of t

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