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Zetta Paper 1 · Q12

Paper 1Probability

Xander rolls 3 fair six-sided dice. Given that at least 2 of them show a 3, what is the probability that the third also shows a 3?

A38\frac38
B318\frac3{18}
C13\frac13
D118\frac1{18}
E16\frac16
F12\frac12
G116\frac1{16}

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