SBA — Single Best Answer · Review
Question 705
Statistics → Epidemiology
Classification
Question
SSBAQuestion Header
Continuous variables
Question Stem
Which of the following is a continuous variable?
Options
A
Ethnicity
B
Blood pressure
C
Blood group
D
Parity category
E
Mode of delivery
Explanation
A continuous variable can take an effectively infinite range of numerical values and may change with time or circumstances. Blood pressure is therefore continuous. Discrete variables take distinct separate values.
Option Validity
A) ethnicity consists of discrete categories.
C) blood group consists of discrete categories.
D) a parity category is discrete.
E) mode of delivery consists of discrete categories.
Further Reading
Review the distinction between discrete and continuous variables.