[الثنائي المرح]

if a player rolls one dia and when gets a number greater than 4 he wins 12$ the cost to play the game is 5$ what is the expectation of the gain

الجواب -1$
ياليت احد يشرحلي ويقولي كيف

lest x denote the number of patients who die at a certain hospital in a day the following table gives the probability function of x

قيم ال x

0 - 1 - 2 - 4 - 6
قيم p(x)

0.2 - 0.1 - k -
0.3 - 0.2
هو يبغى kحق قيمة ال2
what the value k would be needed to complrtr the probability distribution
الجواب 0.2


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