Chapter 12 - Section 12.2 - Assess Your Understanding - Applying the Concepts - Page 610: 8a

$E(Intended~and~Less~Than~3~Months)=573.54$ $E(Intended~and~3~to~5~Months)=36.80$ $E(Intended~and~More~Than~5~Months~(or~never))=41.66$ $E(Unintended~and~Less~Than~3~Months)=73.01$ $E(Unintended~and~3~to~5~Months)=4.68$ $E(Unintended~and~More~Than~5~Months~(or~never))=5.30$ $E(Mistimed~and~Less~Than~3~Months)=179.45$ $E(Mistimed~and~3~to~5~Months)=11.51$ $E(Mistimed~and~More~Than~5~Months~(or~never))=13.04$

$E(Intended~and~Less~Than~3~Months)=\frac{(row_1~total)(collumn_1~total)}{table~total}=\frac{(593+26+33)(593+64+169)}{939}=573.54$ $E(Intended~and~3~to~5~Months)=\frac{(row_1~total)(collumn_2~total)}{table~total}=\frac{(593+26+33)(26+8+19)}{939}=36.80$ $E(Intended~and~More~Than~5~Months~(or~never))=\frac{(row_1~total)(collumn_3~total)}{table~total}=\frac{(593+26+33)(33+11+16)}{939}=41.66$ $E(Unintended~and~Less~Than~3~Months)=\frac{(row_2~total)(collumn_1~total)}{table~total}=\frac{(64+8+11)(593+64+169)}{939}=73.01$ $E(Unintended~and~3~to~5~Months)=\frac{(row_2~total)(collumn_2~total)}{table~total}=\frac{(64+8+11)(26+8+19)}{939}=4.68$ $E(Unintended~and~More~Than~5~Months~(or~never))=\frac{(row_2~total)(collumn_3~total)}{table~total}=\frac{(64+8+11)(33+11+16)}{939}=5.30$ $E(Mistimed~and~Less~Than~3~Months)=\frac{(row_3~total)(collumn_1~total)}{table~total}=\frac{(169+19+16)(593+64+169)}{939}=179.45$ $E(Mistimed~and~3~to~5~Months)=\frac{(row_3~total)(collumn_2~total)}{table~total}=\frac{(169+19+16)(26+8+19)}{939}=11.51$ $E(Mistimed~and~More~Than~5~Months~(or~never))=\frac{(row_3~total)(collumn_3~total)}{table~total}=\frac{(169+19+16)(33+11+16)}{939}=13.04$