![subject](/tpl/images/cats/mat.png)
Mathematics, 20.03.2020 10:05 jasminerainn
At a local health club, a researcher samples 75 people whose primary exercise is cardiovascular and 75 people whose primary exercise is strength training. The researchers objective is to assess the effect of type of exercise on cholesterol. Each subject reported to a clinic to have his or her cholesterol measured. The subjects were unaware of the purpose of the study, and the technician measuring the cholesterol was not aware of the subjects' type of exercise. This is
A. an observational study
B. an experiment, but not a double-blind experiment.
C. a double-blind experiment.
D. a matched pairs experiment.
![ansver](/tpl/images/cats/User.png)
Answers: 3
Another question on Mathematics
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 17:30
If you apply the below transformations to the square root parent function, f(x) = vx, what is the equation of the new function? • shift 12 units right. • shift seven units down.
Answers: 1
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 22:00
What is the length of the segment, endpoints of which are intersections of parabolas y=x^2− 11/4 x− 7/4 and y=− 7 /8 x^2+x+ 31/8 ?
Answers: 1
![question](/tpl/images/cats/mat.png)
You know the right answer?
At a local health club, a researcher samples 75 people whose primary exercise is cardiovascular and...
Questions
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 26.06.2020 16:01
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/ap.png)
Advanced Placement (AP), 26.06.2020 16:01
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 26.06.2020 16:01
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/en.png)
English, 26.06.2020 16:01
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 26.06.2020 16:01
![question](/tpl/images/cats/User.png)
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 26.06.2020 16:01
![question](/tpl/images/cats/mat.png)
Mathematics, 26.06.2020 16:01