I-hold-my-hand-behind-my-back-and-secretly-hold-up-n-fingers-0-n-5-I-then-as-you-am-I-holding-up-k-fingers-Where-k-is-also-a-random-number-0-k-5-You-randomly-guess-Yes-or-No-What-is-the-pr

Question Number 24490 by FilupES last updated on 19/Nov/17

$$\mathrm{I}\:\mathrm{hold}\:\mathrm{my}\:\mathrm{hand}\:\mathrm{behind}\:\mathrm{my}\:\mathrm{back},\:\mathrm{and}\:\mathrm{secretly} \\ $$$$\mathrm{hold}\:\mathrm{up}\:{n}\:\mathrm{fingers}\:\left(\mathrm{0}\leqslant{n}\leqslant\mathrm{5}\right). \\ $$$$\: \\ $$$$\mathrm{I}\:\mathrm{then}\:\mathrm{as}\:\mathrm{you},\:\mathrm{am}\:\mathrm{I}\:\mathrm{holding}\:\mathrm{up}\:{k}\:\mathrm{fingers}? \\ $$$$\mathrm{Where}\:{k}\:\mathrm{is}\:\mathrm{also}\:\mathrm{a}\:\mathrm{random}\:\mathrm{number}\:\mathrm{0}\leqslant{k}\leqslant\mathrm{5}. \\ $$$$\: \\ $$$$\mathrm{You}\:\mathrm{randomly}\:\mathrm{guess}\:\mathrm{Yes}\:\mathrm{or}\:\mathrm{No}. \\ $$$$\mathrm{What}\:\mathrm{is}\:\mathrm{the}\:\mathrm{probability}\:\mathrm{you}\:\mathrm{guess}\:\mathrm{correctly}? \\ $$

Commented by prakash jain last updated on 20/Nov/17

$$\mathrm{1}/\mathrm{6}? \\ $$

Commented by FilupES last updated on 20/Nov/17

$$\mathrm{I}\:\mathrm{honestly}\:\mathrm{don}'\mathrm{t}\:\mathrm{know}. \\ $$$$\: \\ $$$$\mathrm{The}\:\mathrm{question}\:\mathrm{has}\:\mathrm{been}\:\mathrm{bugging}\:\mathrm{me}. \\ $$

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