scattergram

scattergram /skat″ərgram′/ [ME, scateren + Gk, gramma, record] , a graph representing the distribution of two variables in a sample population. One variable is plotted on the vertical axis, the second on the horizontal axis. The scores or values of each sample unit are usually represented by dots. A scattergram demonstrates the degree or tendency with which the variables occur in association with each other.