Please help with this question. Thank you!!

A bag contains green and white marbles. The proportions of each color are 3/4 green and 1/4 white. We will draw a marble, record the color and then return the marble to the bag. This continues until we have drawn 4 green marbles. Explain why this 15 or 15 NOT a binomial setting. (Be very clear about IS or IS NOT, don't make the reader guess about your answer. Explain means you must give a reason.) I lIi r|,i n u il,iii ii,i u n i,i liii,i u