When is a hypothesis written?a.after the experimentb.after the conclusionc.before deciding on a questiond.before the experiment

A hypothesis is written d. before the experiment.

A hypothesis is essentially an educated guess or a prediction that can be tested through experimentation. It proposes a possible explanation for a phenomenon and is often formulated based on observations and existing knowledge about a topic. Writing a hypothesis before conducting an experiment helps to guide the research process and provides a basis for the experiment's design and methodology.

By stating the hypothesis beforehand, researchers can focus on specific variables to test and establish clear expectations for their findings. This structured approach helps in analyzing data more effectively after the experiment is conducted. Thus, forming a hypothesis is a crucial initial step in the scientific method, allowing scientists to explore and understand relationships between different variables.