There is 6 red, 5 yellow, 4 blue, 10 green Andrew picks one marble at a time from a box and puts it
back before the next drawing. He repeats this process 25
times and records the results in the table. Based on the
table, which color marble has an experimental probability
of 2/5?

The question is kind of confusing. if it's asking how many variations of answers can you give. then do 4^5 for your answer.this would be something like the first question could be a and the 2nd c or first b next c etc. if you can, ask the teacher for a better confirmation of what it's asking. if i'm assuming correctly what it's asking, it's 625 different variations.