Multiple Choice
A gumball machine contains three colours of gumballs. There are 10 red gumballs, 10 blue gumballs, and 20 white gumballs. If you take a random sample of four gumballs from the machine and three are white, what is the probability that the fourth will be blue?
A) .25
B) .50
C) .75
D) none of these
Correct Answer:
Verified
Correct Answer:
Verified
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