Question

1. evan wanted to find out what tooth - paste made teeth the cleanest. every day he brushed his teeth with a different product and then took a plaque test to see how much plaque was left. he used crest, colgate, close - up, and water. independent variable choose choose dependent variable type of toothpaste brushing every day how much plaque there was

Explanation:

El variable independiente es lo que el investigador manipula. En este caso, es el tipo de pasta de dientes que Evan utiliza. El variable dependiente es lo que se mide como resultado de la manipulación del variable independiente, es decir, la cantidad de placa dental restante.

Answer:

Independiente Variable: Tipo de pasta de dientes
Dependiente Variable: ¿Cuánta placa hay?