## Statistics: Informed Decisions Using Data (4th Edition)

The peak is in the second class and the tail is on the right. Total: $9+12+10+8+5+2+3+0+1+0+0+0+1=51$. Relative frequency for "30,000-32,999" is $\frac{9}{51}\approx0.1765$ Relative frequency for "33,000-35,999" is $\frac{12}{51}\approx0.2353$ Relative frequency for "36,000-38,999" is $\frac{10}{51}\approx0.1961$ Relative frequency for "39,000-41,999" is $\frac{8}{51}\approx0.1569$ Relative frequency for "42,000-44,999" is $\frac{5}{51}\approx0.0980$ Relative frequency for "45,000-47,999" is $\frac{2}{51}\approx0.0392$ Relative frequency for "48,000-50,999" is $\frac{3}{51}\approx0.0588$ Relative frequency for "51,000-52,999" is $\frac{0}{51}=0$ Relative frequency for "54,000-56,999" is $\frac{1}{51}\approx0.0196$ Relative frequency for "57,000-59,999" is $\frac{0}{51}=0$ Relative frequency for "60,000-62,999" is $\frac{0}{51}=0$ Relative frequency for "63,000-65,999" is $\frac{0}{51}=0$ Relative frequency for "66,000-68,999" is $\frac{1}{51}\approx0.0196$