1. Any scientific experiment is started with a hypothesis. A hypothesis can be defined as a proposed explanation as a starting point which is made based on the limited information available and on which further investigation is to be done.
Hence, the blank can be filled with 'hypothesis'.
2. Data is collected during an experiment which is then analyzed in order to find out whether the collected data supports the hypothesis or not. Proper analyses of the data is vital in determining the results of the experiment.
Hence, the blank can be filled with 'analyzed'.
3. After the experiment is completed and the data is collected and analyzed properly, the conclusion is made based on the observations. The conclusion is the final step of any scientific experiment as it tells what new information has been derived from the experiment.
Hence, the given blank can be filled with 'conclusion'.