Answer
$P(five~40-year-old~males~will~live~to~be~41~years~old) = 0.99757^{5}\approx0.98791$
Work Step by Step
$P(a~40-year-old~male~will~live~to~be~41~years~old)= 0.99757$
Now, using the Multiplication Rule (see page 282):
$P(five~40-year-old~males~will~live~to~be~41~years~old)=$
$=P(a~40-year-old~male~will~live~to~be~41~years~old)\times P(a~40-year-old~male~will~live~to~be~41~years~old)\times P(a~40-year-old~male~will~live~to~be~41~years~old)\times P(a~40-year-old~male~will~live~to~be~41~years~old)\times P(a~40-year-old~male~will~live~to~be~41~years~old)=$
$=[P(a~40-year-old~male~will~live~to~be~41~years~old)]^{5}=$
$=0.99757^{5}\approx0.98791$
