#Uniform Example General #Example with a Paired T Test
mann-whitney u test python
#similiar to t test for independent samples#that t test looks at the mean #mann-whitney u loks at rank sum difference#sort from smallest to largest (smallest rank 1 largest last rank)#example rank group 1 sum 36 rank group sum 2 42 #confirm data is not normally distributed #write null and alternative hypothesis#The Mann-Whitney U Test is […]
Spearman Rank Correlation
Spearman Rank Correlation [Simply explained] Example 2 Fast wth scipy
One-Way ANOVA
https://youtu.be/e0lum-6vuw4 ANOVA (Analysis of Variance) is a statistical method used to compare the means of three or more groups to determine whether at least one group mean is significantly different from the others. If the difference in means is only due to random variation, we accept the null hypothesis (H₀). If the differences are larger […]
How to Normalize a Column Python Pandas
Let’s learn the different ways we can normalize a column from a pandas dataframe in python. Pandas: Pandas is an open source python library built on top of numpy. It is used in machine learning and data science for its various data structures and easy to use functions to manipulate data in dataframes. Pandas is […]
python covariance matrix
Example 1 Manual #The positive value of 3.6 indicates that the prices of Stock A and Stock B tend to move in the same#direction. When the price of Stock A increases, the price of Stock B also tends to increase,#and vice versa. Example 2 Numpy Sample Covariance Example 4 Pandas Sample – No Option Example […]
python skewness of distribution
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 […]
Law of Large Numbers Python
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)
Python probability mass function
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
Python Probability Point Function
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