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Mathematics, 14.01.2020 22:31 sophiee1021

Xavier, yvonne, and zelda each try independently to solve a problem. if their individual probabilities for success are 1/4, 1/2 and 5/8, respectively, what is the probability that xavier and yvonne, but not zelda, will solve the problem?

a. 11/8
b. 7/8
c. 9/64
d. 5/64
e. 3/64

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