Let X be a random variablewith the following probabilitydistribution
Value x of X P(X=x)
0 0.30
10 0.35
20 0.05
30 0.15
40 0.15
Find the Expectation E(x) and varianceVar(x) of X.
Please provide an excel sheet to figure out in the future. Thanks.
Excel file shows expectation and variance of a random Variable.