Question

question 13 what is a hypothesis? a a possible explanation for an observation that can be tested by scientific investigations. b the factor measured or observed in an experiment. c the act of using one or more of your senses to gather information and take note of what occurs. d the factor that is changed by the investigator to observe how it affects a dependent variable.

Explanation:

A hypothesis is defined as a possible explanation for an observation that can be tested through scientific investigations. Option B describes a variable (measured/observed in an experiment), Option C is observation, and Option D is an independent variable affecting a dependent variable. So the correct option is A.

Answer:

A. A possible explanation for an observation that can be tested by scientific investigations.