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I'm trying to find out the best popcorn based on how many kernels are popped. I buy three different brands of popcorn to pop in my microwave on the popcorn setting.
The brands of popcorn are this type of variable: (1)
The number of kernels popped are this type: (2)
Using the popcorn setting is this type of variable: (3)
What is (1) independent, or manipulated, variable.
(2) dependent, or responding, variable.
(3) a constant, or controlled, variable.