You watch a roulette wheel spin 8 consecutive times and the ball lands on a red slot each time. what is the probability that the ball will land on a red slot on the next spin?

0.5

Step-by-step explanation:

A roulette wheel is half red and half black. Each spin is independent: past spins don't change the probability of future spins. So even if you got 8 reds in a row, the probability of the next spin being red is still 50/50.