![subject](/tpl/images/cats/mat.png)
Mathematics, 21.06.2020 08:57 jasozhan
Coal is carried from a mine in West Virginia to a power plant in New York in hopper cars on a long train. The automatic hopper car loader is set to put 84 tons of coal into each car. The actual weights of coal loaded into each car are normally distributed, with mean μ = 84 tons and standard deviation σ = 0.7 ton. (a) What is the probability that one car chosen at random will have less than 83.5 tons of coal? (Round your answer to four decimal places.) (b) What is the probability that 29 cars chosen at random will have a mean load weight x of less than 83.5 tons of coal? (Round your answer to four decimal places.)
![ansver](/tpl/images/cats/User.png)
Answers: 2
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Another question on Mathematics
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 22.06.2019 01:00
Which of the following is another way to express the difference between -5 and 8?
Answers: 1
You know the right answer?
Coal is carried from a mine in West Virginia to a power plant in New York in hopper cars on a long t...
Questions
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/ap.png)
Advanced Placement (AP), 12.07.2019 04:20
![question](/tpl/images/cats/health.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 12.07.2019 04:20
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/ekonomika.png)
Business, 12.07.2019 04:20
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 12.07.2019 04:20
![question](/tpl/images/cats/mat.png)
Mathematics, 12.07.2019 04:20
![question](/tpl/images/cats/ekonomika.png)
Business, 12.07.2019 04:20
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 12.07.2019 04:20
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/en.png)