Question: Soit fx (x) une densit de probabilit (pdf) de la variable alatoire X. c(9 6x + x2), pour 1 S x S 1 {0

Soit fx (x) une densit de probabilit (pdf) de la variable alatoire X. c(9 6x + x2), pour 1 S x S 1 {0 fx(x) = (a) Trouvez la valeur de constante c, et tracez cette fonction. (b) Tracez la fonction de rpartition (i.e cdf) de X. (c) TrouvezP[X = < x < P[IX - < {1 (d) Trouver la moyenne et la variance de la variable alatoire X. sinon

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