![subject](/tpl/images/cats/mat.png)
Mathematics, 01.04.2021 04:50 sparky1234
An experiment is proposed to measure the effectiveness of a brand of sunscreen. Adult volunteers are randomly assigned to one of two brands of sunscreen and asked to enjoy a normal day at the beach. Each volunteer is asked to report back to the administrators after two hours, at which time both arms are assessed for sun exposure.
Which statement describing this experiment is true?
The volunteers are the explanatory variables.
The brands of sunscreen are the response variables.
The amount of time in the sun is the response variable.
The brands of sunscreen are the explanatory variables.
![ansver](/tpl/images/cats/User.png)
Answers: 1
Another question on Mathematics
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 15:30
The table respent two linear functions the equation respented by the first tables is given
Answers: 2
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 20:30
Acircle has a circumference of 7.850 units. what is its radius?
Answers: 2
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 22:00
Worth 100 points need the answers asap first row -x^2 2x^2 (x/2)^2 x^2 x is less than 2 x is greater than 2 x is less than or equal to 2 x is greater than or equal to 2 second row -5 -5/2 4 5 •2 is less than x& x is less than 4 •2 is less than or equal to x & x is less than or equal to 4 •2 is less than or equal to x& x is less than 4 •2 is less than x& x is less than or equal to 4
Answers: 1
![question](/tpl/images/cats/mat.png)
Mathematics, 22.06.2019 00:00
Find the length of the normal and the angle it makes with the positive x-axis. (see pictured below)
Answers: 1
You know the right answer?
An experiment is proposed to measure the effectiveness of a brand of sunscreen. Adult volunteers are...
Questions
![question](/tpl/images/cats/himiya.png)
Chemistry, 16.10.2020 23:01
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/en.png)
English, 16.10.2020 23:01
![question](/tpl/images/cats/mat.png)
Mathematics, 16.10.2020 23:01
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 16.10.2020 23:01
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/biologiya.png)
Biology, 16.10.2020 23:01
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/istoriya.png)
History, 16.10.2020 23:01
![question](/tpl/images/cats/en.png)
English, 16.10.2020 23:01
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 16.10.2020 23:01
![question](/tpl/images/cats/en.png)
English, 16.10.2020 23:01