Siobhan Can Win Money by Closing Her Eyes and Picking

Multiple Choice

Siobhan can win money by closing her eyes and picking a red marble from a jar filled with many colored marbles. She is being offered the choice to draw a marble from four different jars. If Siobhan is in a positive mood, thinking about all the money that she could win, then which jar does research suggest she is very likely to draw from?

A) a jar with one red marble and nine other-colored marbles
B) a jar with two red marbles and eight other-colored marbles
C) a jar with 10 red marbles and 90 other-colored marbles
D) a jar with 20 red marbles and 80 other-colored marbles