Find the Quotient $\frac{z_{1}}{z_{2}}$ For the Complex Numbers $z_{1}=7\left(\cos 220^{\circ}+i \sin 220^{\circ}\right)$

question 19

Essay

Find the quotient $\frac{z_{1}}{z_{2}}$ for the complex numbers
$z_{1}=7\left(\cos 220^{\circ}+i \sin 220^{\circ}\right)$
and
$z_{2}=2\left(\cos 160^{\circ}+i \sin 160^{\circ}\right)$

Understand the concept of income distribution and poverty rate.

Analyze income inequality trends in the United States over different years.

Calculate poverty rates based on given income distribution data.

Recognize how poverty correlates with demographic variables.

---

Definitions:

Test Statistic

A calculated value from sample data used to test a hypothesis in statistical testing, determining whether to reject the null hypothesis.

μ

The symbol commonly used to represent the mean or average of a population in statistics.

Simple Random Sample

A segment of a statistical population in which every individual posseses the same likelihood of being selected.

Normal Population

A statistical population that follows a normal distribution, where the data tends to cluster around a mean value.