What is the valid reading rate? I can only find information on what valid readings are.
I would assume it's a percentage of people who do a valid reading, but there's no percentage sign and the number seems a little too high.
Valid reading rate
What is the valid reading rate? I can only find information on what valid readings are.
I would assume it's a percentage of people who do a valid reading, but there's no percentage sign and the number seems a little too high.