Clear Filters
Clear Filters

probability - execution of an operation

1 view (last 30 days)
Hello, my task is to calculate the probability:
The temperature in a certain city is modeled as a random variable T ∼ N (10◦, (10◦) 2). What is the probability that the temperature at a random time will not exceed 15?
If I counted it "mathematically on a piece of paper", I would calculate it like this, but can I do it faster and more efficiently in matlab?
Thank you in advance for your help!!!
darova on 19 Mar 2021
I dont' understand the formula. Cam you explain?
Thomas Kozinski
Thomas Kozinski on 20 Mar 2021
I must based on a random variable: T ~ N (10, (10)^2).
Calculate the probability that a given "temperature - result" will not exceed 15 at some random moment.
And I don't really know how to go about it, use some function for probability? Maybe you have any idea?

Sign in to comment.

Accepted Answer

Paul on 20 Mar 2021
If T has a normal distribution, then
doc normcdf
can be used to find the probability P(T < t)
Thomas Kozinski
Thomas Kozinski on 20 Mar 2021
sorry for the mistake, it's actually normcdf
I think you understood the content correctly.
So to solve this I can run a command like this: normcdf (x, mu, sigma) x = P (T <15).
normcdf (15,10,100)
Paul on 20 Mar 2021
Yes, except that based on your qeustion and subsequent comment sigma = 10, so it should be:
>> normcdf(15,10,10)
ans =
as shown in your original question.

Sign in to comment.

More Answers (0)

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!