The standard deviation is the square root of the variance...so that means the variance is the standard deviation squared.
2.3^2 = 5.29 <===
Yes! For example, 10 and 20 have 1, 2, 5, & 10 in common ^.^
60. 40 percent of 150 yogurts comes to a sum of 60
7 x 2 = 14
3 x 1 = 3
14+3 = 17
answer 17 unit^2
Let, the number = x
Then, 2(x + 10) = -20
2x + 20 = -20
2x = -20 - 20
x = -40/2
x = -20
In short, The number would be: -20
Hope this helps!
