In a region, 80% of the population have brown eyes. If 12 people are randomly selected, find the probability that at least 10 of them have brown eyes. Is it unusual to randomly select 12 people and find that at least 10 of them have brown eyes? Why or why not?
The probability that at least 10 of the 12 people selected have brown eyes is ____. (Round to three decimal places as needed.)