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According to the U.S. Census Bureau, the 2008 income of U.S. families is given in the...

According to the U.S. Census Bureau, the 2008 income of U.S. families is given in the table:

Income Level Number of Families (in thousands)
<$25,000 28,943.7
$25, 000 − $49, 999 29,178.1
$50, 000 − $74, 999 20,975.4
$75, 000 − $99, 999 13,944.5
≥ $100, 000 24,022.1

(a) What is the probability a randomly selected family has an income below $25,000?

(b) What is the probability a randomly selected family has an income of $75,000 or more?

Math   Precalculus   
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