Germans Selected D4148E
1. **Problem Statement:**
Construct the probability distribution of the random variable $G$ representing the number of Germans selected when 3 consuls are chosen at random from 4 Americans and 2 Germans.
2. **Understanding the problem:**
We have 6 consuls total: 4 Americans (A) and 2 Germans (G). We select 3 consuls randomly.
3. **Random variable $G$:**
$G$ = number of Germans selected in the group of 3.
Possible values of $G$ are 0, 1, or 2 because we cannot select more Germans than available.
4. **Total number of ways to select 3 consuls from 6:**
$$\text{Total ways} = \binom{6}{3} = 20$$
5. **Calculate probabilities for each value of $G$:**
- $P(G=0)$: Select 0 Germans and 3 Americans.
$$\binom{2}{0} \times \binom{4}{3} = 1 \times 4 = 4$$
- $P(G=1)$: Select 1 German and 2 Americans.
$$\binom{2}{1} \times \binom{4}{2} = 2 \times 6 = 12$$
- $P(G=2)$: Select 2 Germans and 1 American.
$$\binom{2}{2} \times \binom{4}{1} = 1 \times 4 = 4$$
6. **Calculate probabilities:**
$$P(G=k) = \frac{\text{Number of favorable ways}}{\text{Total ways}}$$
- $$P(G=0) = \frac{4}{20} = 0.2$$
- $$P(G=1) = \frac{12}{20} = 0.6$$
- $$P(G=2) = \frac{4}{20} = 0.2$$
7. **Probability distribution table:**
| $G$ | 0 | 1 | 2 |
|-----|---|---|---|
| $P(G)$ | 0.2 | 0.6 | 0.2 |
**Final answer:**
The probability distribution of $G$ is:
$$P(G=0) = 0.2, \quad P(G=1) = 0.6, \quad P(G=2) = 0.2$$