Final answer:
To find the probability that a cat will have at least 3 kittens, we need statistical data on litter sizes. Without this, we cannot accurately calculate the probability.
Step-by-step explanation:
The question is about finding the probability that a cat will have at least 3 kittens. To determine this, we would need additional information about the distribution of litter sizes for cats. Without such information, we can't calculate the probability accurately. However, if we had an average litter size or a statistical distribution, we could potentially use statistical methods such as the binomial distribution to determine the likelihood of a cat having at least 3 kittens.