Final answer:
The correct course of action when entering wrong data is to correct the mistake and update the data to maintain accuracy in your work.
Step-by-step explanation:
When you enter the wrong data, the most appropriate action to take is to correct the mistake and update the data. This will ensure that your work remains accurate and reliable. Deleting the data and starting over may be necessary if the error cannot be corrected, but this should be a last resort. Saving incorrect data for later could lead to confusion or errors in your work down the line. Ignoring the mistake can result in inaccuracies that may affect the outcome of your work.