You randomly select 3 marbles from a jar containing white, green, red, and blue marbles. There are ten white, two blue, eight green, and ten red.

If you first select a white marble,

a. what is the probability that the second marble is blue?

b. What is the probability that the third marble is blue?

If you first select blue,

c. what is the probability that the second marble is blue?

d. What is the probability that the third marble is blue?

Enter answers as simplified fractions with no spaces (i.e. 1/5 not 2/10 or 1 / 5)