How does one variable affects another happens in what

Interaction effects occur when the effect of one variable depends on the value of another variable. Interaction effects are common in regression analysis, ANOVA, and designed experiments. ... Interaction effects indicate that a third variable influences the relationship between an independent and dependent variable.

Variables. An experiment generally tests how one variable is affected by another. The affected variable is called the dependent variable. ... In any experiment, other factors that might affect the dependent variable must be controlled.

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the answer is ampere

the ampere is used to measure electricity. an ampere is a unit of electric current equal. a unit of measure for the flow of current in a circuit. one ampere is the amount of current flow provided when one volt of electrical pressure is applied against one ohm of resistance.

find the surface area of the sphere to the nearest square unit. use a calculator.

a. 254 in.2

b. 64 in.2

c. 127 in.2

d. 1,018 in.2