Boy Scout First Aid Of The Members Of A Boy Scout Troop, 15% Have Received Their First Aid Badge. If 40 Boy Scouts Are Selected At?

Of the members of a Boy Scout Troop, 15% have received their first aid badge. If 40 boy scouts are selected at? - boy scout first aid

at random, what the probability that have four or more persons, the distinction between first aid?

** From my understanding, this is a question ... Binomial distribution, but if you do the math does not work. Please help!