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

Measures of central tendency, List down various measures of central tendenc...

List down various measures of central tendency and explain the difference between them?

Define Allocate , Define Allocate To split a lump-sum appropriation into p...

Define Allocate To split a lump-sum appropriation into parts that are specific for expenses by particular government models and/or for particular requirements, actions, or things.

Genotypes are crossed ttyypp x ttyypp - Genetics Biology, Consider the gi...

Consider the given below. T _ tall is dominant to dwarf (tt). Y _ yellow seed is dominant to green seed (yy). P _ purple flower is dominant to white flower (pp). If plants wi

Cost accounting, what is the relationship of cost accounting to financial a...

what is the relationship of cost accounting to financial and management accounting?

Hypotheses testing, Celia is a nurse in a geriatric ward.  She noticed that...

Celia is a nurse in a geriatric ward.  She noticed that older persons in her care are having problems sleeping at night.  She decided to introduce non-pharmocologic ways of relaxat

Define BIENNIUM, Define BIENNIUM A 24-month fiscal era. In Washington, the...

Define BIENNIUM A 24-month fiscal era. In Washington, the biennium expands from July 1 of odd numbered years to June 30 of odd numbered or more years.

Vectors, What do u mean by Vectors? Explain its types.

What do u mean by Vectors? Explain its types.

Advantages of ifrs over the other accounting standards, IFRS has a lot of a...

IFRS has a lot of advantages over the other accounting standards - Provides consistency Ensures better comparability across organizations across the globe Decreases the c

Time series, Explain how you would decide whether to use the additive model...

Explain how you would decide whether to use the additive model or the multiplicative model to analyse a time series.

.., what is probabality

what is probabality

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