Serious Doubt (CLASS 12 MATHS)

So i am having heavy confusion in 2 topics in probability

CH - 13 PROBABILITY,

Topic - Random variable and its probability distribution, mean of random variable

In the syllabus it is present but i couldn't find a single info about it in ncert latest book nor in ncert questions. Upon further diggin it came to my knowledge that it was deleted for some time since covid. But this year they readded it back. But my question is it is not in Ncert official latest book. And i know Cbse can't set paper outside of ncert. SO will this topic come or not, Pls help

THANKS