statistics

Chi-square test – Formula, Concepts, Examples

The Pearson's Chi-square (χ2) test is a statistical test used to determine whether the distribution of observed data is consistent…

1 year ago

Sign Test Hypothesis: Python Examples, Concepts

Have you ever wanted to make an informed decision, but all you have is a small amount of non-parametric data?…

1 year ago

Mann-Whitney U Test (Wilcoxon Rank Sum): Python Example

In the ever-evolving world of data science, extracting meaningful insights from diverse data sets is a fundamental task. However, a…

1 year ago

Types of Data Visualization: Charts, Plots Examples

In today's data-driven world, the ability to extract insights from vast amounts of information has become a critical skill for…

1 year ago

Kruskal Wallis H Test Formula, Python Example

Ever wondered how to find out if different groups of people have different preferences? Maybe you're a marketer trying to…

1 year ago

Clinical Trials & Statistics Use Cases: Examples

Are you a statistician, data scientist or business analyst working in the field of clinical trials? Do you find yourself…

1 year ago

Spearman Correlation Coefficient: Formula, Examples

Have you ever wondered how you might determine the relationship between two sets of data that aren't necessarily linear, or…

1 year ago

Binomial Distribution Explained with Examples

Have you ever wondered how to predict the number of successes in a series of independent trials? Or perhaps you've…

1 year ago

One-way ANOVA test: Concepts, Formula & Examples

The one-way analysis of variance (ANOVA) test is a statistical procedure commonly used to compare the means values on a…

2 years ago

Neyman-Pearson Lemma: Hypothesis Test, Examples

Have you ever faced a crucial decision where you needed to rely on data to guide your choice? Whether it's…

2 years ago

Z-score or Z-statistics: Concepts, Formula & Examples

Z-score, also known as the standard score or Z-statistics, is a powerful statistical concept that plays a vital role in…

2 years ago

Descriptive Statistics – Key Concepts & Examples

Descriptive statistics is a branch of statistics that deals with the analysis of data. It is concerned with summarizing and…

2 years ago

Quiz #85: MSE vs R-Squared?

Regression models are an essential tool for data scientists and statisticians to understand the relationship between variables and make predictions…

2 years ago

Degree of Freedom in Statistics: Meaning & Examples

The degree of freedom (DOF) is a term that statisticians use to describe the degree of independence in statistical data.…

2 years ago

Positively Skewed Probability Distributions: Examples

Probability distributions are an essential concept in statistics and data analysis. They describe the likelihood of different outcomes or events…

2 years ago

Statistics Terminologies Cheat Sheet & Examples

Have you ever felt overwhelmed by all the statistics terminology out there? From sampling distribution to central limit theorem to…

2 years ago