Random Selection of Marbles Narrative

question 44

Essay

Random Selection of Marbles Narrative
A box contains one red, three blue, and two green marbles. Two marbles are randomly selected without replacement. Define events R, B, G, C, and D as follows:
R = {The selected marble is red.}
B = {The selected marble is blue.}
G = {The selected marble is green.}
C = {Both marbles selected are the same colour.}
D = {At least one of the marbles is blue.}
-Refer to Random Selection of Marbles Narrative. Find P(D).

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