Chapter 5 - Section 5.4 - Assess Your Understanding - Applying the Concepts - Page 293: 15

$P(unemployed~|~high~school~dropout)=\frac{0.021}{0.08}=0.2625$

$P(high~school~dropout)=8$% $=0.08$ $P(high~school~dropout~and~unemployed)=2.1$% $=0.021$ Using the Conditional Probability Rule (see page 288): $P(unemployed~|~high~school~dropout)=$ $=\frac{P(high~school~dropout~and~unemployed)}{P(high~school~dropout)}=\frac{0.021}{0.08}=0.2625$