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Bell Curves

Examples of Normal Distribution and Probability In Every Day Life

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The Sum of the Rolls of Two Die

What makes the sum of two die a binomial distribution? Is it a binomial distribution?

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Probability of Heads

This is a simulation of the probability you will get heads on a coin toss from one coin toss to 100.

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Histogram of the Birthweight of New Born Babies

Shows the distribution of birth weight in 3,226 newborn babies.

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Probability Distribution of the Number of Firing Neurons

Estimated probability distribution of the number of firing neurons under different temperatures.

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Average Height of NBA Players

Utlizing stats from NBA.com the mean average height of an NBA player is 6'7.

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Average Female Shoe Size

What is the average female shoe size based on total female shoe sales?

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2013 PSLE T-Score Simulation of 43047 Pupils

To determine the total T-score distribution, we need know the number of pupils, the average of total T-scores and the standard deviation std.

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Distribution of Blood Pressure

Distribution of blood pressure can be approximated as a normal distribution with mean 85 mm. and standard deviation 20 mm.

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Plinko Probability

Interactive Probability Simulation. PhET Interactive Simulations, University of Colorado Boulder, https://phet.colorado.edu. Licensing

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Average Number of Goals

Average number of goals Alex Ovechkin scored over an 82 game season playing for the Capitals.

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Average SAT Scores 2010

The distribution of combined scores for the Scholastic Aptitude Test (SAT) in 2010

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Distribution of Daily Returns of Random Stocks

Daily returns of random stocks over a certain period shows normal distribution aka the bell curve.

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Volume of Milk Production From Cows

Yes even the milk production in cows can have a normal distribution.

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Presidential Elections and S&P 500 Returns

Average monthly returns after presidential election from 1926-2016. Republican vs Democrat vs non-election month.

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Polygenic Characteristics of Men and Women

Polygenic characteristics of men and women such as skin color and height have a bell-shaped distribution.

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Heights of Adult English Male Criminals

Do short men have a complex? This bell curve of the average height of criminals in the 1900s may answer that question.

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Distribution of Carrots & Cucumbers

Plot of two histograms together in R. Shows a bell curve of the average height of carrots and cucumbers.

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The Bell Curve of Mature Buck Antler Scores

Calculates results of deer per acre of 5000 acres with percentage of mature bucks and percentage of antler scores.

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Average Sum of Number of Dice Rolled

Shows the probability and bell curve of number of dice rolled, and what number you will roll most.

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Shifting Distribution of Summer Temperature

View shifting distributions of summer temperatures from 1951 thru 2011. Perception of climate change.

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Average NFL Player Retirement Age

Probability an NFL player will retire based on age over a 10 year period.

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Normal Distribution of Monthly Average Temperature Difference

Probability distribution of the natural variability in monthly temperature anomalies for Durham, North Carolina.

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Probability Distributions

The article linked to below covers Francis Galton's Bean Machine and the probability of distributions.

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