you pick a marble and flip a coin. how many outcomes are possible?

Explanation:

Step1: Count marble - picking outcomes

There are 4 marbles, so 4 possible outcomes for picking a marble.

Step2: Count coin - flipping outcomes

A coin has 2 sides, so 2 possible outcomes for flipping a coin.

Step3: Use the multiplication principle

The total number of combined outcomes is the product of the number of marble - picking outcomes and coin - flipping outcomes. So $4\times2$. $4\times2 = 8$

Answer:

8