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Statistics

Introduction of Statistics

Examples

Find the Mean, Variance and Standard Deviation of example which is showed below table:

x (No. of peas with green pods) P(x)
0 0.001
1 0.015
2 0.088
3 0.264
4 0.396
5 0.236

x P(x)        x · P(x)         (x − μ)² · P(x)
0 0.001 0.000 0.0140
1 0.015 0.015 0.1132
2 0.088 0.176 0.2686
3 0.264 0.792 0.1473
4 0.396 1.584 0.0253
5 0.236 1.180 0.3705
Total    1.000 3.747 0.9390

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