AppliedNumeric answer
The die with a second chance · Part 2 of 3
A fair six-sided die pays its face value in tokens. After each roll you may keep the result or discard it and roll again, subject to the stated reroll limit. There is no fee.
You may reroll once after seeing the first result. What is the fair value before the first roll?
Answer with a number. Fractions, powers and expressions like 23/6 or C(52,5) are read correctly in practice.
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