How to use Weibull distribution when it comes to wind?

  • #1
142
26

Homework Statement:

I'm asked to find out how many hours of the year that the wind is between 4,5 m/s and 5,5 m/s.

Relevant Equations:

Weibull formula
I know that I'm supposed to use Weibull, but why does my teacher take the middle value, 5 m/s? Should one not integrate the formula and the use 4,5 and 5,5 as limits? This is what he has done:
1575392548860.png

He then writes: makes a guess of an interval of 1 m/s and get:
1575392837248.png

1575392925153.png


To be honest, I really don't understand how to use Weibull distribution, and it would be great if someone could explain. I tried finding some websites, but I don't understand. How do I find the probability for one specific wind speed, or find the probability for an interval like this problem I posted?
 

Answers and Replies

  • #3
142
26
Thank you so much!
 

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