Question

which of the following should be done first in a scientific investigation? propose a hypothesis analyze data conduct an experiment identify a question or problem

Explanation:

In the scientific method, the first step of a scientific investigation is to identify a question or problem. This is because a hypothesis is proposed based on the identified problem, experiments are conducted to test the hypothesis, and data is analyzed after the experiment. So the first step is to identify a question or problem.

Answer:

identify a question or problem