Significant figure
Your measurement should include one estimated digit.
Measurement error: obviously!
500
There need not be any estimated digit but, if there must be one, then it is the last digit: 3.
The significant figures in a measurement include all digits measured exactly, plus one estimated digit.
False, one is estimated and three are known
An uncertain digit is a digit in a measurement that is estimated or not completely reliable, often due to limitations in the measuring instrument or the precision of the measurement.
0.503..the 3
Yes, but then there is no point in using an instrument that is that accurate!
The last digit in a measurement indicates the level of precision or uncertainty in the measurement. It is typically an estimate and can vary depending on the instrument's precision or the person taking the measurement. The other digits are considered to be more reliable and accurate in conveying the measurement value.
In nutrition, EAR stands for estimated average requirement. This is a measurement of the nutrient intake value estimated to meet the requirement for half the healthy individuals in a group.
the estimated digit in 0.503 is 3