![subject](/tpl/images/cats/mat.png)
Mathematics, 14.12.2019 01:31 samm8940
You are investigating the role of physical activity in heart disease and suggest that physical activity protects against having a heart attack. while presenting these data to your colleagues, someone asks if you have thought about confounders such as factor x. this factor x could have confounded your interpretation of the data if it:
a. is a factor for some other disease, but not heart disease.
b. is a factor associated with physical activity and heart disease.
c. is a part of the pathway by which physical activity affects heart disease.
d. has caused a lack of follow-up of test subjects.
![ansver](/tpl/images/cats/User.png)
Answers: 3
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Another question on Mathematics
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 16:50
Kapil needed to buy a long wooden beam. he went to two sawmills that each charge an initial fee plus an additional fee for each meter of wood. the following equation gives the price (in dollars) of a wooden beam from the first sawmill as a function of its length (in meters). p = 5+20xp=5+20x
Answers: 1
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 19:00
What is the correlation coefficient between the variables? round to three decimal places. enter your answer in the box
Answers: 2
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 21:00
Due to financial difficulties the owner of 4 skateboard stores is going to close 2 of his stores. based on the money earned at each store, which two stores should remain open?
Answers: 2
![question](/tpl/images/cats/mat.png)
You know the right answer?
You are investigating the role of physical activity in heart disease and suggest that physical activ...
Questions
![question](/tpl/images/cats/mat.png)
Mathematics, 28.08.2019 17:40
![question](/tpl/images/cats/istoriya.png)
History, 28.08.2019 17:40
![question](/tpl/images/cats/mat.png)
Mathematics, 28.08.2019 17:40
![question](/tpl/images/cats/mat.png)
Mathematics, 28.08.2019 17:40
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/fizika.png)
Physics, 28.08.2019 17:50
![question](/tpl/images/cats/himiya.png)
Chemistry, 28.08.2019 17:50
![question](/tpl/images/cats/en.png)
English, 28.08.2019 17:50
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 28.08.2019 17:50
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 28.08.2019 17:50
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/informatica.png)
Computers and Technology, 28.08.2019 17:50
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/health.png)
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/informatica.png)
Computers and Technology, 28.08.2019 17:50
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 28.08.2019 17:50