30 points
erik is performing a marble experiment in math class. his teacher places an equal number of black, red, and white marbles in a bag. then, erik randomly takes out a marble, records the result, and puts the marble back in the bag. each of the first four times erik takes out a marble, he gets a black marble.
1: what is the theoretical probability of erik picking a black marble next time? based on erik's results, what is the experimental probability of erik picking a black
2: explain the difference between the two probabilities you found in part 1.
3 what is the theoretical probability and likelihood of getting four black marbles in a row?