Identify the explanatory variable and response variable in each of the studies

described here.

a. A study of cell phone use and primary brain cancer suggested that cell

phone use was not associated with an elevated risk of brain cancer.

b. Records of more than three-quarters of a million surgical procedures

conducted at 34 different hospitals were monitored for anesthetics

safety. The study found a mortality rate of 3.4% for one particular

anesthetic. No other major anesthetics were associated with mortality

greater than 1.9%.

c. In a landmark study involving more than three-quarters of a million

individuals in the United States, Canada, and Finland, subjects were

randomly given either the Salk polio vaccine or a saline (placebo)

injection. The vaccinated group experienced a polio rate of 28 per

100,000 while the placebo group had a rate of 69 per 100,000. A

third group

Question

Mathematics

Guest

24 October, 13:54

Identify the explanatory variable and response variable in each of the studies

described here.

a. A study of cell phone use and primary brain cancer suggested that cell

phone use was not associated with an elevated risk of brain cancer.

b. Records of more than three-quarters of a million surgical procedures

conducted at 34 different hospitals were monitored for anesthetics

safety. The study found a mortality rate of 3.4% for one particular

anesthetic. No other major anesthetics were associated with mortality

greater than 1.9%.

c. In a landmark study involving more than three-quarters of a million

individuals in the United States, Canada, and Finland, subjects were

randomly given either the Salk polio vaccine or a saline (placebo)

injection. The vaccinated group experienced a polio rate of 28 per

100,000 while the placebo group had a rate of 69 per 100,000. A

third group

+4

Answers (1)

Know the Answer?

Beckham · Answer 1

Step-by-step explanation:

Answer:

a) Explanatory variable is the study of cell phone usage while the response variable is the risk of brain cancer

b) Explanatory variable is the Records of more than three-quarters of a million surgical procedures conducted at 34 different hospitals, while the response variable is the mortality rate

c) Explanatory variable is the type of treatment given (Salk polio vaccine or a saline placebo injection) while the response variable is the polio rate.

Step-by-step explanation:

Explanatory variable are the variable been studied in a research while the response variable are the effects (either positive or negative) of the explanatory variable that is studied.