Calculate the variance for the following population of N = 5 scores:
2, 13, 4, 10, 6

One unique triangle, because those angles add up to 180, and that's how many degrees there are in one triangle.

1. 0.3 •4 is the same as 4 groups of 0.32. 7•0.8 is the same as 7 groups of 0.83. it increases by 0.5 every time, so 0.5x4 it increases by 0.9 every time, so 0.9x5. 0.9•12=10.86. 0.47•5=2.35i can finish the next ones in a separate post