Sameer has 6 markers in the bottom of his backpack. 1 is red, 2 are blue, and 3 are green. He calculates the theoretical probability of choosing a blue marker at random. Then he
tests this probability by choosing a marker without looking, noting the color, and putting the
marker back into the backpack. Sameer gets a blue marker in 8 out of 18 trials. How does
Sameer's experimental probability compare to the theoretical probability, and what is the
reason for any difference between them?