Probability of Spearman rank correlation coefficient and similar type question


I am going to appear for CFA this month, but somewhere in my mind I have a fear of facing some unexpected question like the spearman rank corelation or like the mean differences question with equal and unequal variance.

Can anyone please suggest me what is the probablity of those quesiton, as many of the online youtube tutors always give the suggestion of never skipping any topic, because you don’t know what might appear in exam.

Thanks in advance.

The short, practical answer is that they’re not going to ask you any questions on those, so don’t worry about them.

The more accurate answer is that they may ask a question about the circumstances under which you would use any of those, but you certainly won’t have to compute any of them