You've made the hypothesis that the steeper the slope, the faster a ball will be rolling when it reaches the bottom.
what should be your dependent variable in an experiment testing this hypothesis?
a. how tall the slope is
b. how steep the slope is
c. how fast the ball is rolling at the top
d. how fast the ball is rolling at the bottom
also add the letter

Use a calculator to verify that σ(x) = 62, σ(x2) = 1034, σ(y) = 644, σ(y2) = 93,438, and σ(x y) = 9,622. compute r. (enter a number. round your answer to three decimal places.) as x increases from 3 to 22 months, does the value of r imply that y should tend to increase or decrease? explain your answer. given our value of r, y should tend to increase as x increases. given our value of r, we can not draw any conclusions for the behavior of y as x increases. given our value of r, y should tend to remain constant as x increases. given our value of r, y should tend to decrease as x increases.