Jackson said, "I am thinking of two fractions that when added have the sum of one." Which fractions could Jackson have been thinking about?

The tiles below are pieces of a normal ecg tracing representing a little less than two heartbeats at a resting rate of 80 bpm. arrange the tiles in their correct order. rank from first to last. do not overlap any tiles.

Find the equation of the trend line (line of best fit). show your work i'm using the points (34,76) (42,91)

Which data set has a greater spread? why? set a: {38, 12, 23, 48, 55, 16, 18} set b: {44, 13, 24, 12, 56} has a greater spread because .