Final answer:
To arrive at an indicator for a given need, you can analyze the given information and identify relevant variables or formulas, conduct a survey or collect data directly, or use existing data and research studies.
Step-by-step explanation:
If you are given information about a problem or situation and you need to arrive at an indicator for this need, one way to do it is by analyzing the given information and identifying what is being asked to find. This involves identifying the relevant variables, equations, or formulas that can be used to calculate the indicator. For example, if you are given the population of a city and are asked to find the population growth rate, you can use the formula: population growth rate = (final population - initial population) / initial population * 100%.
Another way to arrive at an indicator is by conducting a survey or collecting data that directly measures the need. For instance, if you want to measure the level of customer satisfaction, you can design a survey with questions related to satisfaction and gather responses from customers.
Lastly, you can also use existing data or research studies that have already established indicators for similar needs or concepts. This involves researching and finding reliable sources that provide indicators for the specific need you are interested in.