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

Comb & proportions type will appear in f & f2, In fowl,the genotype rrpp gi...

In fowl,the genotype rrpp gives single comb, R_P_ walnut comb, rrP_ pea comb, and R_pp rose comb. a. What comb type will appear and in what proportions in F and F2 if single- co

Fertility-define the annual crude birth rate, Fertility:  In order to study...

Fertility:  In order to study at which speed, at which the population is increasing, fertility rates are used which are of various types? Important among these are: Crude birth rat

Relationship between mediation activity, Is there a relationship between me...

Is there a relationship between mediation activity and cooperation between two nations in conflict? A data set was assembled across 15 time periods. Both variables were measured on

Calculate a forecast using exponential smoothing, The Midwestern Manufactur...

The Midwestern Manufacturing Company (MMC) is a large manufacturer of electrical generators.  The firm has experienced demand for their generators as shown below: Year  Demand

Compute the test statistic, Choose a variable and collect data consisting o...

Choose a variable and collect data consisting of at least 30 values. Before collecting the data, decide what a likely average might be, then complete the following: a. Write a b

Describe the statistical results, Q1. A software developer is interested in...

Q1. A software developer is interested in finding what the best color theme should be for an engine diagnostic program for the flight line. He is considering three different color

Assingment, who we complete accounting cycile

who we complete accounting cycile

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