4. (Theoretical Probability MC) The sample space for tossing a coin 3 times is {HHH, HHT, HTH, HTT, THH, THT, TTH, TTT}. Determine P(2 tails). (2 points)

The sample space has 8 possible outcomes. The outcomes with exactly 2 tails are HTT, THT, TTH. There are 3 such outcomes. Therefore, the probability of getting exactly 2 tails is 3/8.

3/8 = 0.375

0.375 * 100% = 37.5%