Question bank/JEE Main/Mathematics
JEE MainMathematicsToughProbability
A fair die is tossed. If 2, 3 or 5 occurs, the player wins that
number of rupees, but if 1, 4, or 6 occurs, the player loses that number
of rupees, then his expected gain/loss (in Rupees) is-,d ik s mNkyk gh 6 vkrk gS] rks f
fdruh gkfu ¼:i;sa
Show answer and solution
Then expected value E of the game payoffs for the player
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A_i 2 3 5 1 4 6
----- ----- ----- ----- ----- ----- -----
M_i 2 3 5 -1 -4 -6
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Since E is negative therefore game is unfavorable to the player.
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A_i 2 3 5 1 4 6
----- ----- ----- ----- ----- ----- -----
M_i 2 3 5 -1 -4 -6
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Since E is negative therefore game is unfavorable to the player.
Source: Grass-G / M-21 Mathematics Paper 19 Dec Hindi Eng.docx
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