At Gnomes-Are-Us, the weekly output of garden gnomes over a four-week period is thus: Week 1: 900 gnomes Week 2: 1100 Week 3: 900 Week 4: 1100 What is the weekly mean (or average) and the standard deviation from the mean? (You do not need to look up and use a fancy standard deviation formula. Just use your basic understanding of what standard deviation means) mean: 1000 standard deviation: 1000 mean: 1000 standard deviation: 100 mean: 100 standard deviation: 1000 mean: 1200 standard deviation: 50 mean: 750 standard deviation: 75