Problem 1:

a) Mean = (2+1+0+3+2+1+4+2+1+2)/10 = 18/10 = **1.8 goals** - b) Sorted: 0,1,1,1,2,2,2,2,3,4. Median = (2+2)/2 = **2 goals** - c) Variance = Σ(x-μ)²/n = 1.16, Standard deviation = √1.16 ≈ **1.08 goals**