Chapter 5 - Section 5.3 - Assess Your Understanding - Applying the Concepts - Page 285: 17a

$P(two~40-years-old~males~will~live~to~be~41~years~old)=0.9951459049$

$P(a~40-year-old~male~will~live~to~be~41~years~old)=0.99757$ Now, using the Multiplication Rule (see page 282): $P(two~40-years-old~males~will~live~to~be~41~years~old)=$ $P(a~40-year-old~male~will~live~to~be~41~years~old)\times P(a~40-year-old~male~will~live~to~be~41~years~old)= 0.99757\times0.99757=0.9951459049$