Statement showing relationship between variables is

The theories and generalizations are concluded after a lot of observations, research, experiments, investigations, and exploration. The arguments and explanations are only used to do research and experiments to prove the hypotheses as right or wrong and to establish the theories and facts.

Key Points 

• A hypothesis states a presumed relationship between two variables in a way that can be tested with empirical data. 
• It may take the form of a cause-effect statement, or an "if x,...then y" statement. The cause is called the independent variable and the effect is called the dependent variable.
• A hypothesis can also be referred to as an idea that is suggested as the possible explanation for something but has not yet been found to be true or correct. It is kind of statement showing relationship between variables.
• A hypothesis is the beginning of an investigation that is based on the superstitions and pieces of evidence collected from surroundings.
• The hypothesis remains a hypothesis until we prove them with the help of proper investigations and draw an inference.

Hence, it can be concluded that a statement showing a relationship between variables is called hypothesis.