Question

1. which symbol means given that?

options: ∪, ↑, |, ∩

Explanation:

The symbol "|" is standard in probability and statistics to denote "given that" (used in conditional probability, e.g., $P(A|B)$ means probability of A given B). The other symbols represent union ($\cup$), intersection ($\cap$), and sample size/count ($n$) respectively.

Answer:

O |