Respuesta :
Variance of profit is $3600.
mean variance is $ 360
Let X denote the number of units produce then E(X)=50 abd Var(X)=90
Let Y denote the profit the Y=1000-2*X
So, mean profit =E(Y)=E(1000-2*X)=1000-2*E(X)=1000-2*50=900
Variance of profit =Var(Y)=Var(1000-2*X)=4*Var(X)=4*90=360
Let X denote the number of units produce then E(X)=500 abd Var(X)=900
Let Y denote the profit the Y=2000-2*X
So, mean profit =E(Y)=E(2000-2*X)=2000-2*E(X)=2000-2*500=1000
Variance of profit =Var(Y)=Var(2000-2*X)=4*Var(X)=4*900=3600
Profit variance is the distinction between the real income skilled and the budgeted income degree.
A variance is the distinction between real and budgeted income and expenditure.
To calculate gross earnings variance, you'll subtract your projected gross benefit from your actual gross profit, which equals periodic sales minus costs of goods bought. For working variance, subtract projected working profit from actual running profit, which equals revenue minus all COGS and running prices.
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