Hidden Value
Probability
Level
2
These 5 cards have the same mean, mode and median.
What is the value on the hidden card?
4
2
3
5
Cannot be determined
1
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1 solution
We already know that the mode must be 3 since a majority of the cards are 3, so the average must too be 3. This implies that the sum of then cards must be 15, so we solve the equation 10 + x = 15 to get the missing value to be 5.