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15.12.2020 •
Mathematics
Jackson wants to save more than $350 for his summer vacation. Which of the following number lines represents the inequality showing how much money (m) Jackson wants to save
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Ответ:
The answer would be D the fourth option
Step-by-step explanation:
Ответ:
Expected Value = - 0.5
Step-by-step explanation:
Expected Value [ E(X) ] = Σ {X. Probability (X)} = Σ [ (X).P(X) ]
Case 1 : Lottery WonProbability = 1 / 1000
X Value = 500 - 1 = 499
Case 2 : Lottery LostProbability = 1 - Probability Winning = 999 / 1000
X Value = -1
Expected Value :(1 / 1000) (499) + (999 / 1000) (-1)
0.499 - 0.999
= - 0.5