Let X be a random variable with the following probability distribution. Value x of X P(X=x) -10 0.40 0.15 10 0.20 20 0.25 Complete the following. (If necessary, consult a list of formulas.) (a) Find the expectation E (X) of X. ? E (x) = 0 (b) Find the variance Var(X) of X. Var(x) = (0

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Question 8 of 17 (1 point)| Question Attempt: 2 of Unlimited
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Let X be a random variable with the following probability distribution.
Value x of X P(X=x)
-10
0.40
0.15
10
0.20
20
0.25
Complete the following. (If necessary, consult a list of formulas.)
(a) Find the expectation E (X) of X.
E (x) =
(b) Find the variance Var(X) of X.
Var(x) =
Check
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Transcribed Image Text:M Link de zoom para "Ingenieri X 1218LM1914: Tarea de sesiór O (72) WhatsApp b My Questions | bartleby A ALEKS - Hector Hidalgo - Gu A latam-awa.aleks.com/alekscgi/x/Isl.exe/1o_u-lgNslkr7j8P3jH-lism6p54EtUddR-PrG9yyMRedZQZTxsfCOhwelfpayqRSTA6bxlm0ZmyyTTIMBIK_5yyut9fked 5W4. Actualizar : Guía para preparación de 2o. examen parcial Question 8 of 17 (1 point)| Question Attempt: 2 of Unlimited Hector V Español Let X be a random variable with the following probability distribution. Value x of X P(X=x) -10 0.40 0.15 10 0.20 20 0.25 Complete the following. (If necessary, consult a list of formulas.) (a) Find the expectation E (X) of X. E (x) = (b) Find the variance Var(X) of X. Var(x) = Check Save For Later Submit Assignment O 2021 McGraw Hill LLC. All Rights Reserved. Terms of Use Privacy Center >> 11:49 a. m. P Escribe aquí para buscar Vinculos 18°C 22/10/2021 26
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