I'm kind of embarrassed that I don't fully get this, but I assume it is because the example is using letters for a sample space instead of numbers.
Sample space = {a,b,c,d,e,f} with equal probability outcome | a | b | c | d | e | f | x | 0 | 0 | 1.5 | 1.5 | 2 | 3 |
Is this saying that P(X=0) = a + b
? Or P(X=0) = 1/6 + 1/6
?
Could someone please explain this is simple terms (like a dice throw example, perhaps)?