Chi-squared Tests


Chi-squared tests are statistical hypothesis tests that are used to determine whether there is a significant association between two categorical variables. The test compares the observed data with the expected data, assuming that there is no significant difference between the two. The test calculates a chi-squared statistic, which is then compared to a critical value from a chi-squared distribution to determine whether the null hypothesis should be rejected or not. Chi-squared tests are commonly used in data science and artificial intelligence to analyze categorical data, such as survey responses or website click-through rates, and to determine whether there is a significant relationship between different variables. There are several types of chi-squared tests, including the Pearson chi-squared test, the likelihood ratio chi-squared test, and the Fisher's exact test.


Your Previous Searches
Random Picks

  • Hypothesis Testing: Hypothesis testing is a statistical method used to determine whether a hypothesis about a population parameter is supported by the sample data. It involves formulating a null hypothesis and an alternative hypothesis, selecting a significanc ... Read More >>
  • Text Classification: Text classification is the process of categorizing text data into predefined categories based on its content. It is a supervised learning technique in machine learning and natural language processing that involves training a model on a labe ... Read More >>
  • Flexibility: Flexibility in Data Science refers to the ability of a system or model to adapt to changes in the data or environment without requiring significant modifications. A flexible model can handle a wide range of inputs and can adjust its paramet ... Read More >>
Top News

Trump's new energy order puts states' climate laws in the crosshairs of the Depa...

A new executive order from President Donald Trump that's part of his effort to invigorate energy production launches the possibility that his Department of Justice will go to court against state laws ...

News Source: ABC News on 2025-04-10

CNN’s town hall with Sen. Bernie Sanders: Key takeaways...

Sen. Bernie Sanders delivered a wholesale rejection of President Donald Trump’s escalating trade wars and combative approach to foreign policy Wednesday night, urging Americans to remember their com...

News Source: CNN on 2025-04-10

These tech leaders donated to Trump. Now they’re out billions of dollars | CNN...

Silicon Valley leaders donated to President Donald Trump’s campaign or inauguration fund. They visited him at Mar-a-Lago and sat front-and-center as he was sworn into office. But in the first three ...

News Source: CNN on 2025-04-09

The U.S. and China are copying each other, giving rise to memes and mockery...

President Donald Trump wants to bring back American manufacturing in ways that would reshape the United States economy to look more like China’s....

News Source: NBC News on 2025-04-09

Former Facebook executive tells Senate committee company undermined US national ...

Sarah Wynn-Williams, a former executive at Meta and author of an explosive insider account of her time at the social media giant testified before the Senate Judiciary Committee Tuesday, accusing the c...

News Source: ABC News on 2025-04-09