Understanding basic probability in Year 7 Math means getting to know a few important ideas:

1. Experiment: This is when you do something to see what happens. For example, you could toss a coin or roll a die.

2. Outcome: This is the result of what you did. If you roll a die, the possible outcomes are 1, 2, 3, 4, 5, or 6.

3. Event: This is a specific result or a group of outcomes. For example, when you roll an even number (which could be 2, 4, or 6), that’s an event.

4. Probability: This tells us how likely an event is to happen. We calculate it like this:

   $P(E) = \frac{\text{Number of ways the event can happen}}{\text{Total number of outcomes}}$

For example, the probability of rolling a 2 on a die is:

$P(2) = \frac{1}{6}$

When students learn about these ideas, they start to understand probability better. This knowledge is really important as they continue their math studies!