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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 ?
Can someone please explain the solution to this problem? Thanks.
Probablity that Zelda will not be able to solve problem is 1 - 5/8 = 3/8 hence
Required Probablity = 1/4*1/2*3/8 = 3/64
Answer is E
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