What Is the Anticoagulant Used in a Sample to Be

question 14

Multiple Choice

What is the anticoagulant used in a sample to be tested for APTT?

• A) Sodium oxalate
• B) Sodium citrate, 3.2%
• C) Sodium heparin
• D) EDTA
• E) None of the above

---

Definitions:

Sample Variance

The measure of the dispersion of sample data points around the sample mean, estimating the population variance.

Population Variance

A measure of dispersion that shows how much the members of a population differ from the population mean.

True Value

The actual value of a parameter or variable that is typically estimated based on sample data.

Coefficient of Determination

This indicates the proportion of the variation in the dependent variable that can be explained by the independent variable(s) in a regression model, quantifying the predictive power of the model.