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

Poisson distribution, uuuuioooooo zAZ az; z;;ZuazA; Zazx A Za zA ZA xza XZ ...

uuuuioooooo zAZ az; z;;ZuazA; Zazx A Za zA ZA xza XZ Axz AZX A xA XZ axz AZX A zxA ZXa oxz aOX AxzAAX axz

Median graph(less than), Marks(less than)-10,20,30,40,50,60,70,80 Number of...

Marks(less than)-10,20,30,40,50,60,70,80 Number of students-4,8,25,34,41,46,50,60 Draw a median graph for the followin

Distribution of the sample mean, 1. Suppose that a population has mean, µ, ...

1. Suppose that a population has mean, µ, and standard deviation, σ. What does the central limit theorem tell us about the distribution of the sample mean?

Current Liabilities and Payroll , Prior to the last payroll period of the c...

Prior to the last payroll period of the calendar year, the cumulative earnings of Employer A were $105000. The earnings for the last payroll period of the year which will be paid o

Determine the payment at maturity - exchange rate, You have the following l...

You have the following limited information upon which to base your decision as to which is the better of two alternative funding arrangements:  Alternative 1 is to arrange fu

Cost of preference sharea, A company wishes to issue new preference shares;...

A company wishes to issue new preference shares; the company will incur flotation cost of 2% per share. the market value of this shares is $90 per share & a nominal value of $100 p

Variance analysis , Terry Co. manufactures a commercial solvent that is use...

Terry Co. manufactures a commercial solvent that is used for industrial maintenance. This solvent is sold by the drum and generally has a stable selling price. Due to a decrease in

Frequency distribution, hey goo day, i wanna know the definition of frequen...

hey goo day, i wanna know the definition of frequency distribution and how to conduct it like in examples?

Ashland multicomm services, Given all the evidence that you have collected ...

Given all the evidence that you have collected from all your surveys of 50 prospective customers, answer the question will full explanation. How many free premium channels should

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