What does "|" mean in statistics(probability)?

Step-by-step explanation:

my answer is definitely i mean in statistics in math problem

The same thing that means in normal math.

3|6 reads "three divides 6".

Hope this helps.

(f - g)(x) = 5x^3 - 3

step-by-step explanation:

rearrange these functions vertically, with like terms in separate columns:

f(x) = 5x^3 - 2

g(x) =         +1

now subtract, column by column:

(f - g)(x) = 5x^3 - 3