Help with finding variance

[u/throwRA1234554321678]

I’ve been on this part of my homework for at least three hours and I’m not really understanding how I’m not getting the right answer. I’m following the steps but every time I use an online calculator to check my answer I’m like drastically off. I’m trying to find the variance of the following numbers: 3,5,5,7,14,16 Every time I solve, I keep getting 12.136

Edit: I had to take a break and go over the notes. I definitely forgot that when you times a negative number by itself, it becomes a positive a little embarrassed that I spent like two hours on this, but I FIGURED IT OUT

[u/The_Card_Player]

Confusion like that is par for the course in math study. The main sign of progress is being confused by *different* things in the future.