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Approximate the chance of meeting someone who resembles you based on crowd size and the diversity of appearance traits.
Calculate Cohen's d effect size from two independent sample means and standard deviations.
Estimate the probability of axion–photon oscillations in a magnetic field using the Primakoff effect.
Estimate the chance that at least two people in a group share the same birthday using the famous birthday paradox formula.
Estimate the diffusion coefficient of small particles in a fluid using the Stokes-Einstein equation.
Estimate the ideal size of your emergency fund, measure any savings gap, and forecast how long it will take to reach your goal based on monthly contributions and interest.