I’ve made it to postgrad science school without learning stats properly, I have no idea what any of this means.
https://drive.google.com/file/d/1N1uqN63NFM-6BrhKrFrf5jOt4iOkd2md/view?usp=sharing
I’ve made it to postgrad science school without learning stats properly, I have no idea what any of this means.
https://drive.google.com/file/d/1N1uqN63NFM-6BrhKrFrf5jOt4iOkd2md/view?usp=sharing
Comments
the “k^(th)” thing just means one particular value out of a whole list of them, say the 10th one, or the 301st one, or whatever. If you put them all in order, there will be k-1 numbers less than it, and n (total number of things) -k more than it. So, If you have a list of 20 things, and you pick k is the 10th one, there are nine less than it and 10 more than it.
Oke, let us have a dataset X: {5, 1, 2, 3, 3, 2, 6, 2, 4, 6}. The obtain the k’th order statistic (denoted x[k]) we order the data: {1, 2, 2, 2, 3, 3, 4, 5, 6, 6} and take the k’th entry. Thus f.e. x[3] = 2, and x[6] = 3.
However, note that what I wrote is not the technical definition, your screenshot is the definition of the ordered statistic. No ELI5 is going to help you however, since your exam will probably ask about x[3.5], which given the technical definition, is a completely valid question.
Thus: A friendly piece of advice, get rid of any deficiencies now, since depending on the course, it might get complicated very, very quickly.