You have a bag containing 2 yellow and 3 blue blocks. You reach in and randomly pick a block, record its color, and put the block back in the bag. You reach in again and randomly pick another block. What is the probability of picking 2 yellow blocks?
A. Explain in detail how to reason about equally likely outcomes to determine the probability of picking 2 yellow blocks.
B. Explain in detail how to reason about fraction arithmetic (including multiplication) to determine the probability of picking 2 yellow blocks. When you use multiplication, explain in detail why it applies.