Final answer:
The relative frequency of direct hits from category 4 hurricanes is 0.0768, which is derived by dividing the occurrences of category 4 hurricanes by all hurricanes included in the dataset.
Step-by-step explanation:
The question regarding the relative frequency of direct hits from category 4 hurricanes can be addressed by examining the provided data. According to the information given, the relative frequency of direct hits classified as category 4 hurricanes is represented by the numeral 0.0768. To elucidate, relative frequency is calculated by dividing the number of occurrences of a specific event by the total number of events. In this case, the specific event is the occurrence of category 4 hurricanes, and the total would comprise all hurricanes considered for the calculation.
It's important to grasp that the relative frequency is a measure used to assess how often an event occurs in proportion to all occurrences. Since category 4 hurricanes are strong and can cause significant damage due to their high wind speeds—as reflected on the Saffir-Simpson scale which ranges from 1 to 5—the relative frequency whether high or low, also indicates how common such intense storms have been historically.