Significant figures are the digits in a measurement that are known with certain plus one digit that is estimated. Recognizing the number of significant figures in a measured quantity is easy for measurements that someone personally makes.
Scientists use significant figures to clearly express the precision of measurements. The number of significant figures used to express the measurement is determined by the number of figures that are certain in measurement plus one additional figure that expresses uncertainty.
|Significant Figure||Significance Test||Figuring Percentages||Solid Figure|
|Correlation Coefficient Significance||Pearson Correlation Coefficient Significance|