Population values inferred from statistics of a sample are called______

It is often difficult to isolate the influence of health risk factors on health functioning because

some adults engage in more than one risk behavior. This problem, which is a major methodological concern, is known as: A) health-related quality of life. B) risk comorbidity. C) a measurement confound. D) health invariance.

Nerve impulses travel more slowly in babies than in older children and adults

Indicate whether this statement is true or false.