Influenza activity is increasing in the United States. CDC is receiving reports of flu-associated illnesses, hospitalizations, and deaths. Influenza A (H3N2) viruses are the most common viruses circulating in the United States.
An independent clause is a group of words that contains a subject and verb and expresses a complete thought. An independent clause is a sentence.
The independent (or manipulated) variable is something that the experimenter purposely changes or varies over the course of the investigation. The dependent (or responding) variable is the one that is observed and likely changes in response to the independent variable. For example, a student might change the position of a planeâs wing to see how it affects the average speed of a model plane. The wing position would be the independent variable- because the student purposely changes its location.