A box contains 1 red and 3 identical white balls. Two balls are drawn at random in succession without replacement. Write the sample space for this experiment.

Explanation

To solve the problem, we need to determine the sample space for the experiment of drawing two balls from a box containing 1 red ball and 3 identical white balls, without replacement.

### Step-by-Step Solution:

1. **Identify the Balls**:
- We have 1 red ball (denote it as R) and 3 identical white balls (denote them as W).

2. **Understanding the Drawing Process**:
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