Final answer:
The probability that a person killed by lightning is a woman is 58.5%, based on the data provided.
Step-by-step explanation:
To determine the probability that a person killed by lightning is a woman, based on the data that 166 of the 400 people killed by lightning were men, we need to first find the total number of women killed by lightning. Since there are 400 total deaths and 166 were men, the number of women killed is 400 - 166, which equals 234. We then divide the number of women killed by the total number killed to get the probability.
Probability of a woman being killed by lightning = Number of women killed / Total number of people killed = 234 / 400 = 0.585 or 58.5%.