The management function which involves measuring outcomes and taking corrective action to reduce error is?

The management function that involves measuring outcomes and taking corrective action to reduce error is called "Controlling." Controlling is a process where the manager compares actual results to the desired results, and then takes steps to correct any deviations. This helps ensure that the organization is moving in the right direction and achieving its goals. For example, if a company's goal is to increase sales, the manager would regularly check the sales figures to see if they are meeting the target. If the sales are lower than expected, the manager might take corrective actions such as increasing marketing efforts, improving product quality, or adjusting pricing. Controlling is an ongoing process that helps organizations stay on track and make necessary changes to achieve their goals.