Paul records data that indicate that the number of hot chocolates sold at the concession stand increases as temperature outside
decreases (for example, more hot chocolates are purchased during late fall than late spring) Which of the following statements is the most accurate depiction of this finding? A. There is a correlation between the two variables. B. There is a strong, positive correlation between the two variables. C. There is a weak, positive correlation between the two variables. D. There is a negative correlation between the two variables.
d) There is a negative correlation between the two variables.
Explanation:
A correlation refers to the fact that two variables fluctuate together.
A correlation can be positive or negative:
A positive correlation between two variables means that they fluctuate in parallel (both increase or both decrease)
A negative correlation between two variables means that they fluctuate in opposite ways (one increases and other decreases)
In this example, the number of hot chocolates <u>increases</u> as temperature outside <u>decreases</u>. The variables that are correlated are the temperature and the number of hot chocolates sold.
Since one of the variables increases while the other decreases, we can conclude that there is a negative correlation between the two variables.
The entire watershed, or drainage area, of the Albemarle-Pamlico region includes approximately 28,000 square miles of northeastern North Carolina and southeastern Virginia.
In 1820, amid growing sectional tensions over the issue of slavery, the U.S. Congress passed a law that admitted Missouri to the Union as a slave state and Maine as a free state, while banning slavery from the remaining Louisiana Purchase lands located north of the 36º