The scatter plot presents Ray's monthly electricity bills and the amount of time Ray spent at home from January through August. Using the scatter plot, find the correlation coefficient of this data set. The correlation coefficient (r) is . The correlation coefficient can be improved by ignoring the bill for the month of .

Astore manager records the total visitors and sales, in dollars, for 10 days. the data is shown in the scatter plot. what conclusion can the store manager draw based on the data? question 3 options: an increase in sales causes a decrease in visitors. an increase in sales is correlated with a decrease in visitors. an increase in visitors is correlated with an increase in sales.

Which graph corresponds to the function f(x) = x2 + 4x – 1?

Three cylinders have a volume of 2836 cm^3. cylinder a has a height of 900 cm. cylinder b has a height of 225 cm. cylinder c has a height of 100 cm. find the radius of each cylinder. use 3.14 as an approximate for π