Probability Fruit
1. **State the problem:** We have a total of 10,000 boxes of bananas from Ecuador and Honduras with the following counts:
- Ecuador: 6,000 boxes (200 damaged, 840 overripe)
- Honduras: 4,000 boxes (365 damaged, 295 overripe)
We need to find probabilities related to damaged and overripe fruit.
2. **Calculate total damaged and overripe boxes:**
$$\text{Total damaged} = 200 + 365 = 565$$
$$\text{Total overripe} = 840 + 295 = 1135$$
3. **(a) Probability a box contains damaged fruit:**
$$P(\text{damaged}) = \frac{\text{Total damaged}}{\text{Total boxes}} = \frac{565}{10000} = 0.0565$$
Probability a box contains overripe fruit:
$$P(\text{overripe}) = \frac{1135}{10000} = 0.1135$$
4. **(b) Probability the box is from Ecuador or Honduras:**
There are only two origins so:
$$P(\text{Ecuador or Honduras}) = P(\text{Ecuador}) + P(\text{Honduras}) = \frac{6000}{10000} + \frac{4000}{10000} = 1$$
5. **(c) Probability that given overripe fruit, box is from Honduras:**
Use conditional probability:
$$P(\text{Honduras} | \text{overripe}) = \frac{P(\text{Honduras} \cap \text{overripe})}{P(\text{overripe})} = \frac{295/10000}{1135/10000} = \frac{295}{1135} \approx 0.2597$$
6. **(d) Probability box contains damaged or overripe fruit:**
- If mutually exclusive (no overlap):
$$P(\text{damaged or overripe}) = P(\text{damaged}) + P(\text{overripe}) = 0.0565 + 0.1135 = 0.17$$
- If not mutually exclusive, and assuming damaged and overripe counts could overlap, total damaged or overripe is:
$$P(\text{damaged or overripe}) = P(\text{damaged}) + P(\text{overripe}) - P(\text{damaged} \cap \text{overripe})$$
Since no overlap data provided, overlap is unknown. If overlap is zero, same as above. Otherwise, subtract overlap probability.