Bethany0323
07.05.2021 •
Mathematics
Find the expected value of the random variable with the following probability distribution... pls help no links :/
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Ответ:
x = -1
Step-by-step explanation:
2(x + 3) - 4 = 0
2x + 6 - 4 = 0
2x + 2 = 0
2x = 0 - 2
2x = -2
x = -2 ÷ 2
x = -1