Answer:
C. About 18 percent of the variation in blood pressure can be explained by a linear relationship between blood pressure and caffeine consumed.
Explanation:
Here, r = 0.428
∴ We can say it will give a positive curve, as 0.428 indicates it is a positive correlation.
Though the amount of correlation is low, still it is positive and more than 0.4
So, nearly about 18% of the variation in the blood pressure can be observed by the consumption of caffeine water. As consumption of caffeine water and blood pressure is both increasing so we can say that r= 0.428 will give a positive linear curve.
Babies can be born premature due to the mother smoking or drinking. Another reason could be over stressing. This has nothing to do with race, but it could possibly be a reason because black women are more likely to? Not super sure on this one, hope it helped.
It is hypoxia, or low levels of oxygen
Turning off the switch breaks the electrical current to the light - no supply of energy, the light goes off.
I think. it either helps reproduce or make food from the sun
