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Ryan Nolan

Ryan is a Data Scientist at a fintech company, where he focuses on fraud prevention in underwriting and risk. Before that, he worked as a Data Analyst at a tax software company. He holds a degree in Electrical Engineering from UCF.

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Statistics

python skewness of distribution

June 12, 2025 Ryan Nolan No comments yet

Skewness measures the asymmetry of a distribution. Positive skew (right-skewed): Tail is longer on the right, most values are on the left. Negative skew (left-skewed): Tail is longer on the left, most values are on the right. Zero skew: Summetrical distribution (like a normal bell curve). https://youtu.be/mHP5CEsxnxE Here, we import key libraries for statistical analysis […]

Statistics

Law of Large Numbers Python

June 12, 2025 Ryan Nolan No comments yet

Example 1 Coin Flips (Bernoulli Distribution) #If we repeat the coin flip multiple times, the sum of these Bernoulli trials follows a#Binomial distribution. However, when looking at a single flip, it’s simply a Bernoulli distribution Example 2 Data Science Salaries (Normal Distribution)

Statistics

Python probability mass function

June 12, 2025 Ryan Nolan No comments yet

Example 1 Binom success or failure, multiple trials each time Example 2 Poisson number of events happening in a fixed interval of time Example 3 Geometric trials till first success Example 4 Uniform equal likelyhood of result

Statistics

Python Probability Point Function

June 12, 2025 Ryan Nolan No comments yet

Example 1 lowest 20% lowest 70% Example 2 Find the data points that are between 25 and 50% Example 3 Find the top 20% data points Example 4 Numpy Percentiles Cover Quartile, Decile, Percentile in the next video Example 5 Graph Matplotlib seaborn doesnt have a PPF Option

Statistics

Python Cumulative distribution function

June 12, 2025 Ryan Nolan No comments yet

In this article, we’ll explore how to use the Cumulative Distribution Function (CDF) in Python through several practical examples. First, we’ll do a manual calculation to get a better grasp of the idea conceptually. Then, we’ll go on to utilizing NumPy and SciPy to do it more efficiently. Lastly, we’ll use Matplotlib and Seaborn to […]

Statistics

uniform distribution python

June 12, 2025 Ryan Nolan No comments yet

https://colab.research.google.com/drive/1And9Ryq0SUIrzRwPKNu_51N5LOmcl26m?authuser=2 Example 1 Random Numbers 0 to 1 Example 2 Generate Dice Rolls Example 3 Data Points Example 4 Histogram Plot Example 5 Calculate PMF Example 6 Calculate CDF

Statistics

Poisson distribution in python

June 12, 2025 Ryan Nolan No comments yet

https://colab.research.google.com/drive/1xDMi4lOvL9L1v_qW_uapz3DhJE8Rh3_Q?authuser=2 Example 1 generate Poisson-Distributed Random Variables Numpy Example 2 generate Poisson-Distributed Random Variables Scipy Example 3 Calculating Poisson Probability Mass Function (PMF) Part 1 # is a function that gives the probability that a discrete random variable is exactly#equal to a particular value. In other words, the PMF describes the distribution of a#discrete random […]

Statistics

Binomial distribution python

June 12, 2025 Ryan Nolan No comments yet

https://youtu.be/bZfnCdLLxAI#sns.distplot hist=True#To do Mean, Variance, STD#probabiliy of less or equal to K Occurences #Exmaple 1 Creation in Numpy (YouTube Subscribers) Example 2 Creation in Scipy Coin Flip Example 3 Calculate PMF #Probability of Exaxtyl K Occurences #n= sample size #k = number of SUCCESS #p = probability Example 4 Calculate CDF #Probability of less of […]

Statistics

Harmonic Mean in Python

June 12, 2025 Ryan Nolan No comments yet

Example 1 Manual Calc Example 2 statistics Example 3 scipy

Statistics

Geometric Mean in Python

June 12, 2025 Ryan Nolan No comments yet

Example 1 Manual Example 2 Numpy Example 3 Scipy Example 4 Scipy Percentages Growth Rate Growth Rate

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