Posted by **please help** on Sunday, February 10, 2013 at 10:03pm.

Will taking antioxidants help prevent colon cancer?

A medical experiment divided subjects into four gruops:daily beta-carotene, daily vitamins C and E, all three vitamins every day or daily placebo to determine if they help prevent colon cancer.

1. What are the explanatory and response variables in this experiment?

My question: Is the placebo considered an explanatory variable??

I know the beta-carotene, vitaminds C and E, and all three vitamins are. The response variable is the incidence of cancer.

## Answer This Question

## Related Questions

- math - People who eat losts of fruits and vegetables have lower rates of colon ...
- science - Examine the label of a jar of multivitamins—either one that you ...
- Math Calculus - A firm finds that it can sell all the radios it manufactures st ...
- Math - A factory produces x calculators per day. The total daily cost in ...
- Math - A factory produces x calculators per day. The total daily cost in ...
- Math - A factory produces x calculators per day. The total daily cost in ...
- Statistics Help - A medical statistician wanted to examine the relationship ...
- math - You invest $1,000 at 4% compounded daily. Two years later you take the ...
- Health 4th grade - When choosing a snack it is important to select a food that ...
- p.e - When chosing a snack it is important to select a food that contains a ...

More Related Questions