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Let's calculate the probability that both chocolates are raspberry, following the tree diagram.

- The probability of selecting a raspberry chocolate first is \( \frac{5}{12} \).
- After selecting the first raspberry chocolate, the probability of selecting another raspberry chocolate (second one) is \( \frac{4}{11} \), because there are now 11 chocolates left, with 4 of them being raspberry.

So, the probability of selecting two raspberry chocolates is the product of these probabilities:

\[
P(\text{both raspberry}) = \frac{5}{12} \times \frac{4}{11} = \frac{20}{132}
\]

Now, we simplify the fraction \( \frac{20}{132} \):

\[
\frac{20}{132} = \frac{5}{33}
\]

Thus, the probability that both chocolates are raspberry is \( \frac{5}{33} \).

Would you like further details or have any questions? 

Here are 5 related questions to think about:
1. What is the probability of selecting two caramel chocolates?
2. What is the probability of selecting one caramel and one raspberry chocolate?
3. How would the probabilities change if there were more raspberry chocolates initially?
4. How is the tree diagram used to visualize all possible outcomes?
5. Can you calculate the total probability for all outcomes to verify they sum to 1?

**Tip:** When calculating probabilities involving multiple events, remember to multiply the probabilities of each individual event occurring.

If both chocolates are the same flavour, what is the probability that they are both raspberry?

Find out how to calculate the probability of selecting two raspberry chocolates in a row using a tree diagram. This problem covers key concepts such as probability and the multiplication rule, suitable for students in Grades 7-9.

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