Question

many types of bacteria cannot survive on objects made of copper. dr. bowman was considering using beds with copper bed rails instead of beds with plastic rails at the hospital where she worked. she wanted to know if copper bed rails would reduce the number of patients who got new infections. to test this, dr. bowman had beds with copper rails placed in half of the hospital rooms. over the next six months, 430 patients were admitted to the hospital: 215 patients were put in rooms with copper bed rails and 215 patients were put in rooms with plastic bed rails. dr. bowman counted the number of patients in each type of room who got new infections while they were in the hospital. complete the sentence. in this experiment, the number of patients who got new infections was ___ a dependent variable an independent variable

Explanation:

The number of new - infection patients depends on the type of bed rails (copper or plastic), which is the independent variable. So it is a dependent variable.

Answer:

a dependent variable