Brainliest + 20 points to whoever helps!!

Which step is necessary for incorporate randomization into a simulation?
a. Use a chance device.
b. Create a data table.
c. Run the simulation more than once.
d. Write an alternative hypothesis.

Match each graph with the correct equation from the equation bank. not all equations will be usef

When drawing a trend line for a series of data on a scatter plot, which of the following is true? a. there should be an equal number of data points on either side of the trend line. b. all the data points should lie on one side of the trend line. c. the trend line should not intersect any data point on the plot. d. the trend line must connect each data point on the plot.

Can someone tell me if this is perpendicular? !