Probability of even number on die.

**The reasoning** A standard die has 6 faces numbered 1, 2, 3, 4, 5, and 6. Even numbers are those divisible by 2: **2, 4, and 6** — that's 3 even numbers. Probability = (Number of favorable outcomes) / (Total possible outcomes) So: Probability = 3/6 = **1/2** This is the **basic probability principle**: count what you want, divide by what's possible. **Why the wrong options tempt you** **A) 1/6** — You might think there's only ONE even number, or confuse this with the probability of getting a specific number like "only 2" or "only 4". **B) 1/3** — Easy mistake: you count 3 even numbers but forget there are 6 total, not 9. Or you might wrongly simplify. **D) 2/3** — You counted the 4 numbers that aren't what you want (the odd ones plus something), mixing up favorable vs unfavorable. **Quick takeaway** Half the numbers on a die (2, 4, 6) are even, so there's a **50-50 chance** — always count carefully and simplify your fraction!