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GMATBLACKBELT
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pmenon
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bmwhype2
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elmagnifico
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could you please explain your answer?
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bmwhype2
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is it d?

P(none default) = (.8)^5
P(one default) = P(non-default)^4

(.8)^5 + (.8)^4
D
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GMATBLACKBELT
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OA is D.

.8^5+ 5(.8^4*.2) ~.7373
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bmwhype2
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hhhmmm is it because its

5C1 * .8^4 * .2^1



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