Carla Is Taking a Home Pregnancy Test to Find Out

question 23

Multiple Choice

Carla is taking a home pregnancy test to find out whether she is pregnant. If this test comes back positive, which hormone has it detected in Carla's urine?

• A) estrogen
• B) relaxin
• C) progesterone
• D) human chorionic gonadotropin (HCG)

---

Definitions:

Independence

A concept in probability and statistics indicating that two events or variables have no association or influence on each other.

Categorical Variables

Variables that represent categories and can take on a limited, and usually fixed, number of possible values.

Degrees Of Freedom

The number of independent values or quantities which can be assigned to a statistical distribution or in the calculation of a statistic, typically in the context of parameter estimation.

Chi-Square Distribution

A statistical distribution used to describe the distribution of a sum of the squares of independent random variables.