Convert coursera courses to ECTs TL:DR version: I took some Coursera courses, I want to know how many credits they are worth by the institution backing it up (as well as how many credits a semester they offer, preferably, in the semester they offer that course).

Full version: I know title may be a little confusing so I will clarify.
I am applying for a Master's Degree program, and the pre-requisites include mathematical knowledge. I am an MD, so math is not a big part of my undergraduate program, however I work as a developer, and there I apply mathematical principles. For this course I need to prove my knowledge on the subjects of Probability and Statistics, Linear Algebra and Calculus so I contacted the institution and they told me I could study those subjects online via Coursera. I chose my courses and I am currently studying them.

However application period has already started, and as part of pre-requisites I gotta fill a form, and some fields are about ECTs in the already mentioned subjects. I asked the institution via email how would I fill these, and they told me I can specify the course duration (in hours) and also how many credits (hours) a semester is offered in that institution, in order for them to know how many credits (ECTs) are they worth.

In this situacion, how could I know could I know how many credits a course is worth in the institution that backs up that course in Coursera? and how could I know how many credits a semester it is worth?

Specific courses are (feel free to suggest better alternatives, since I don't have to complete them due the deadline, rather I have to compromise to take them):

Linear Algebra (Matrix algebra): https://www.coursera.org/learn/matrix-algebra-engineers

The three courses in this program (calculus, linear algebra): https://www.coursera.org/learn/linear-algebra-machine-learning

Probability and Statistics: https://www.coursera.org/learn/probability-statistics?
Usually European universities have a course schedule that shows also the European credits adjusted. You could access the website of the university that offers the course, look for the class and see in the syllabus/course content how many credits it is. Usually this is not shown in application pages but rather in tabs such as “class search” or something similar