marble probability

Question

A bag contains 20 marbles: 5 yellow, 2 white, 3 blue, and 10 green. If 4 are selected at random, find the probability that
a.2 are yellow, with replacement

 

b. 2 are yellow, without replacement

c. All are green, with replacement

d. All are green, without replacement

e. There is one of each color, with replacement

f. There is one of each color, without replacement

g. Both whites are taken, with replacement

h. Both whites are taken, without replacement

Answer 1

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