Which Part of the Heart Contracts to Pump Blood Out

question 53

Multiple Choice

Which part of the heart contracts to pump blood out into the arteries through a set of valves?​ 

• A) ​ventricle 
• B) ​aorta 
• C) ​atrium 
• D) ​vena cava 
• E) ​capillary

---

Definitions:

Population Means

The average value of a particular characteristic within a total population.

Credit Purchases

Transactions where goods or services are bought using credit rather than cash or debit, to be paid off at a later date.

Confidence Interval

A collection of values, sourced from statistical study of a sample, likely holding the unknown quantity of a population parameter.

Degrees Of Freedom

The number of independent values or quantities that can vary in the analysis without violating any constraints.