aisis21
07.09.2020 •
Mathematics
4. Sabe-se que com determinado tratamento se alcan¸ca 80% de cura para certa doen¸ca, quando o mesmo ´e administrado a pacientes em condi¸c˜oes bem definidas. Um grupo de trˆes pacientes ´e sorteado, dentre a popula¸c˜ao que receberam o tratamento. a) Determine a distribui¸c˜ao de probabilidade da vari´avel aleat´oria ”nu´mero de pacientes que se submeteram ao tratamento e foram curados”; b) Calcule o valor esperado e a variˆancia da vari´avel aleat´oria
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Ответ:
D.
Step-by-step explanation:
To do this, we need to plug in the given values into the equation: