dice rolling odds. please help!

#1
Suppose you have a FIVE sided dice. One of the sides has a star on it, the other four sides are blank. Suppose you rolled it 10 times. What are the odds that you would roll the star 4 out of the 10 times? can't figure this out, thank you so much!
 

hlsmith

Less is more. Stay pure. Stay poor.
#2
You can consider it 4 out of 10 successes based on a 0.20 probability and use the binomial distribution.