\(N=90.20=1800\left(nu\right)\)
\(L=34.90=3060\left(\overset{o}{A}\right)\)
\(M=1800.300=540000\left(dvC\right)\)
Ta có:
\(\left\{{}\begin{matrix}A_1=T_2=20\%\dfrac{N}{2}=180\left(nu\right)\\T_1=A_2=30\%\dfrac{N}{2}=270\left(nu\right)\\G_2=X_1=10\%\dfrac{N}{2}=90\left(nu\right)\\X_2=G_1=40\%\dfrac{N}{2}=360\left(nu\right)\end{matrix}\right.\)
\(\left\{{}\begin{matrix}A=T=A_1+A_2=450\left(nu\right)\\G=X=G_1+G_2=450\left(nu\right)\end{matrix}\right.\)
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