indicator

Selecting an appropriate indicator is a critical step in the analysis of data. An indicator is a measure that helps to quantify and track changes over time. It can be used to assess the performance of a system, process, or organization. Indicators are used in a wide variety of fields, including economics, finance, healthcare, and…

A pH indicator is a chemical substance that changes color in response to changes in the acidity or alkalinity of a solution. pH indicators are used to measure the pH of a solution, which is a measure of the concentration of hydrogen ions in the solution. The pH scale ranges from 0 to 14, with…