Question

a scientist analyzed numerous samples of drinking water for the presence of lead and nickel. one sample is chosen. let l be the event that the sample contains lead. let n be the event that the sample contains nickel. which venn diagram is shaded to represent the event l ∩ n?

Explanation:

Step1: Recall intersection meaning

The symbol $\cap$ represents the intersection of two sets. In a Venn - diagram, the intersection $L\cap N$ is the region that is common to both set $L$ and set $N$.

Answer:

A.