Answer:
Dependent; speed of typing
Independent; keyboard design & chime
Explanation:
The dependent variable is the variable in a study or research that is being measured, studied, or tested by an experimenter while conducting specific research. It is completely dependent on the independent variable which can cause a change in the dependent variable.
The independent variable is the variable that is being controlled, altered, or manipulated by the researcher while conducting research and therefore affects the dependent variable.