statistics
posted by iyra .
The data below represents the amount of grams of carbohydrates in a sample serving of breakfast cereal.
10 18 24 30 19 22 24 20 18 25 20 22 19
The variance for this data would be __________ grams.

I recommend using your calculator. I calculated sigma(n1) as a sample, and got 4.705, making variance(sample)=22.14
You may not be wanting sample standard deviation and variance. Use your calculator.