I'll give 5 examples
Getting a sum of 10 in a toss of 2 dice
Getting a hand of 8 cards consisting of 3 aces and 5 face cards
Seating 7 persons in a row, 2 of whom should sit together
Getting at least 2 heads in a toss of 4 coins
Getting 2 red balls from a box containing 5 red balls and 6 blue balls
I believe 1, 3, and 5 are simple events, while 2 and 4 are compound events
But my problem is that I cannot tell if this is true or not, I'm uncertain of whether an event is simple or compound. How can I tell the difference?