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The problem provided is related to calculating probabilities based on a table of given values.

### a) Find the probability that a counter selected at random is green.
From the table, we can see that the probability of selecting a green counter is 0.3.

**Answer:**
The probability that a counter selected at random is green is 0.3.

---

### b) Work out the probability that a counter selected at random is red or pink.
To find the probability of selecting a red or pink counter, we add the probabilities of selecting each color.

- Probability of red = 0.3
- Probability of pink = 0.3

So, the probability of selecting a red or pink counter is:

\[
P(\text{red or pink}) = P(\text{red}) + P(\text{pink}) = 0.3 + 0.3 = 0.6
\]

**Answer:**
The probability that a counter selected at random is red or pink is 0.6.

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### c) How many of the beads are red?
There are 70 beads in total, and the probability of selecting a red bead is 0.3. To find the number of red beads, we multiply the total number of beads by the probability of selecting a red bead:

\[
\text{Number of red beads} = 0.3 \times 70 = 21
\]

**Answer:**
There are 21 red beads.

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Do you need further clarification or details on any of the steps? Feel free to ask!

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Here are some related questions to expand your knowledge:
1. What is the total probability of selecting a counter from the bag? How does the sum of the individual probabilities help us in understanding the situation?
2. How would the probability change if the number of counters in each color was altered?
3. How can you calculate the expected number of counters of a specific color if the total number changes?
4. How would you approach a problem with multiple events, like selecting more than one counter?
5. Can you work out a problem where a counter is selected twice, with replacement?

**Tip:** Always double-check that the sum of the probabilities in a problem like this adds up to 1, as the total probability for all possible outcomes should equal 1.

A bag contains only red, blue, green, pink and white counters. The table gives information about the probability of selecting red, blue, pink and white counters.

a) Find the probability that a counter selected at random is green.
b) Work out the probability that a counter selected at random is red or pink.
c) How many of the beads are red?

Learn how to calculate the probability of selecting counters based on color. This problem covers basic probability concepts such as calculating individual and combined probabilities, as well as applying these concepts to real-world scenarios. Suitable for Grades 7-9.

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