probability

probability, looks at probability and statistics concepts in Python.

The notes:

• probability.pdf
• probability.tex

Python scripts:

• correlation_example.py, computes correlations between various simple vectors of length 3.
• dog_example.py, read 'dog_data.txt', look for correlations between dog weight and owner weight, pay, and yard size.
• height_example.py, read 'height_data.txt', count number of heights within one standard deviation of mean.
• homes_example.py, read 'homes_data.txt', plot lot size versus selling price.
• moneyball_example.py, read 'moneyball_data.txt', compute correlation between winning percentage and total payroll.
• moneyball_plot.py, read 'moneyball_data.txt', plot payroll versus winning percentage.
• snow_example.py, read 'snow_data.txt', count number of values within one standard deviation of mean.
• snow_simulation.py, simulate snow data using known mean and standard deviation for normal distribution.

Text files:

• correlation_data.txt, a table of 9 rows of 3 numbers. We want to evaluate the correlation between pairs of rows.
• correlation_example.txt, output from correlation_example().
• dog_data.txt, 10 records of dog weight, owner weight, owner pay, yard size (square feet).
• dog_example.txt, output from dog_example().
• height_data.txt, 25000 records of student number, height (inches), and weight (pounds).
• height_example.txt, output from height_example().
• homes_data.txt, 50 records of 9 items about a home sale: the selling price ($)}, asking price ($), living area (square feet), rooms (#), bedrooms (#), bathrooms (#), age (years), lot size (acres), taxes ($).
• homes_example.txt, output from homes_example().
• moneyball_data.txt, 15 records containing the winning percentage and total payroll for baseball teams.
• moneyball_example.txt, output from moneyball_example().
• snow_data.txt, 129 records of snowfall at Michigan Tech. Each record contains a year, and total snowfall in inches.
• snow_example.txt, output from snow_example().
• snow_simulation.txt, output from snow_simulation().

Images:

• big_snow.png, an illustration of a big snowfall.
• dog_weight_owner_pay.png, plot of pet dog's weight versus owner's salary.
• dog_weight_owner_weight.png, plot of pet dog's weight versus owner's weight.
• dog_weight_yard_size.png, plot of pet dog's weight versus yard size.
• height_example.png
• homes_lot_sell.png, plot of lot size versus selling price for home retail sales.
• moneyball_plot.png
• moneyball.png
• snow_example.png
• snow_simulation.png