According to the Central Limit Theorem, when sampling from a population with a sufficiently large sample size (typically n ≥ 30 is considered enough), the distribution of the sample means will be approximately normally distributed, regardless of the shape of the population distribution, as long as the samples are independent and randomly selected.
Given that the sample size \( n = 4000 \) is quite large, the distribution of the sample mean of the square footage of homes in Florida will be approximately a normal distribution.
So, the answer is normal distribution.