you have plastic chips in your hand which are red on top and blue on the bottom. if you dropped 8 plastic chips, how many would probably land with the red side up?

Probably 4 chips would land with the red side up. Since each chip has two sides (red and blue), and we normally assume the chips are fair and the drop is random, each side has a 50% chance of landing face up, just like a coin toss.

With 8 chips, the expected number showing red is 8×0.5=48\times 0.5=48×0.5=4.

This is why most puzzle and homework-style discussions give 4 as the likely answer under normal “fair and random” conditions.