Question

Rafael has 1 black, 3 red, 7 green, 2 blue, and 2 yellow candies in his pocket.

Answer 1

Could be a very low chance, because since there is 3 red candies. 

Answer 2

P(red)  = number of red candies / total number of candies
           =  3 / (1+3+7+2+2)
           =  3/15
           = 1/5