Eduprobe
Question:
The variance of first 50 even natural numbers is?
833
437
4374
8334
Solution:
σ²=(Σx²in)-x̄²
x̄= Σ50r=1 2r/50 = 51
σ²= Σ50r=1 4r²/50-(51)²=833
833
437
4374
8334
σ²=(Σx²in)-x̄²
x̄= Σ50r=1 2r/50 = 51
σ²= Σ50r=1 4r²/50-(51)²=833