1. The problem asks which event has a probability closest to 1. 2. Let's analyze each event: (a) Flipping a coin and having it land on tails: The probability is $\frac{1}{2} = 0.5$. (b) Not rolling a 2 on a die: The probability of rolling a 2 is $\frac{1}{6}$, so not rolling a 2 is $1 - \frac{1}{6} = \frac{5}{6} \approx 0.833$. (c) Guessing correctly on a true/false question: Probability is $\frac{1}{2} = 0.5$. (d) Guessing the outcome of a school election with 3 candidates: Probability is $\frac{1}{3} \approx 0.333$. 3. Comparing the probabilities: 0.5, 0.833, 0.5, 0.333. 4. The event with probability closest to 1 is (b) Not rolling a 2 on a die with probability $\frac{5}{6} \approx 0.833$. Final answer: (b) Not rolling a 2 on a die.