A restaurant owner wants to see if there is a relationship between the amount of sugar in several of the food items on her menu and the number of orders of those menu items. She creates a scatter plot showing the relationship between amount of sugar in a menu item and the number of orders for that item on the menu. The correlation coefficient for the line of best fit is 0.58. a. Are they correlated?
b. Do either of the variables cause the other to change?
I did not understand this at all...

Write the equation for the parabola that has x− intercepts (−2,0) and (4,0) and y− intercept (0,4).

If sin(x) = 0 and cos(x) = 1, what is tan(x)?

Max recorded the heights of 500 male humans. he found that the heights were normally distributed around a mean of 177 centimeters. which statements about max’s data must be true? a) the median of max’s data is 250 b) more than half of the data points max recorded were 177 centimeters. c) a data point chosen at random is as likely to be above the mean as it is to be below the mean. d) every height within three standard deviations of the mean is equally likely to be chosen if a data point is selected at random.