Answer: 2. It is likely that a confounding variable could be a contributing explanation for the difference between these two groups.
3. This is an observational study, not an experiment.
Step-by-step explanation:
Based on the information given, the statement that's true include:
• It is likely that a confounding variable could be a contributing explanation for the difference between these two groups.
• This is an observational study, not an experiment.
It is an observational study as the researcher observed just observed the scenarios without him trying to change the people that are being exposed to it or controlling it.
Therefore, the correct options are II and III only.
The form of the equation is point-slope form, and it's in the form (y-y1)=m(x-x1), where m is the slope. Therefore, 3 is the slope in this case because 3=m.
Hope this helped :)
Answer:
13 and 15
Step-by-step explanation:
x + (x+1) + (x+2) > 40
3x + 3 > 40
3x > 37
x > 12.34
Therfore x= 13,15 satisfy the equation
Answer:
x=74 degrees
Step-by-step explanation:
Answer:
B- 3,500.
Step-by-step explanation:
This is because 3,500 is the lowest number that can be rounded to 4,000.
3,999 and 4,001 can also be rounded but.. (let me show you an image to help).
3,500 < 3,999 < 4,001.
That goes from smallest to largest numbers that round to 4,000.
Hope that helps. x