Scientists base many of their investigations on questions that test accepted theories. which outcome of an investigation would cause a scientist to ask a different question?

A scientist would ask a different question when he or she founds that the observed results are different from the expected results.

Explanation:

When one expects something and gets something else, then one is having a big enough cause to ask for new questions and initiate a new investigation. Scientific investigation is the process by which the researchers and scientists use a planned approach to answer questions regarding the world around us.