Fasting Plasma Glucose Levels
Which axis does the dependent variable go on, the x or y? ?
also, how do u tell which is the dependent and which is the independent. My question is this:
people with diabetes must manage their blood sugar levels carefully. they measure their fasting plasma glucose (FPG several times a day with a glucose meter. Another measurement, made at regular medical checkups, is called HbA. This is roughly the percent of red blood cells that have a glucose molecular attached. It measures average explosure to glucose over a period of several months.
Then i’m given a table with HbA Percentage and FPG. I’m supposed to make a scatterplot with HbA as the explanatory variable.
sasha K…what’s x??
A dependent variable goes on the Y axis.
It is not clear in this case which would be considered independent and which dependent, since two different things are being measured and it is not clear from the description that the two are functionally related. *
In a case like this, I would place the more reliable variable (the HbA measurement made by a medical professional) on the X axis and the FPG measurement on the Y axis. The scatter plot itself may show that there is a functional relationship so that one measurement may be expressed as a mathematical relationship with the other.
Edit:
* The term “explanatory variable” was not familiar to me. After looking it up, I can see that HbA goes on the X axis.
Explanatory (or, predictor) variable: A variable which is used in a relationship to explain or to predict changes in the values of another variable; the latter called the dependent variable.
What Is The Difference Between Fasting Plasma Glucose Test And An Oral Glucose Tolerance Test?
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Glucose
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