Answer: D. The theoretical probability is greater than the experimental.
Explanation:
The theoretical probability is 1/2 (0.5) because a coin has two sides, and one of those sides is a head.
The experimental probability is 5/27 (0.19) because out of the 27 flips, 5 flips resulted in a head.
0.5 (Theoretical) > 0.19 (Experimental)
The theoretical probability is greater than the experimental probability.