Chi-square Statistic

Chi-square statistic is a measure of the difference between the expected and observed frequencies of a categorical variable. It is used to determine whether there is a significant association between two categorical variables. The test involves calculating the difference between the observed and expected frequencies for each category, squaring the differences, dividing them by the expected frequencies, and summing the results. The resulting value is compared to a critical value from the chi-square distribution to determine whether the difference between the observed and expected frequencies is statistically significant. Chi-square statistic is commonly used in data science and artificial intelligence to test hypotheses about the relationship between categorical variables.
Your Previous Searches
Random Picks
  • Entities: In data science, entities refer to objects or concepts that are relevant to a particular domain and can be represented as data. These can include people, places, things, events, and more. Entities are often identified and extracted from uns ... Read More >>
  • USB Connectors: USB (Universal Serial Bus) connectors are hardware interfaces used to connect peripheral devices to a computer or other electronic devices. USB connectors are designed to be hot-swappable, meaning they can be connected and disconnected with ... Read More >>
  • ECoG: Electrocorticography (ECoG) is a neuroimaging technique that records electrical activity directly from the surface of the brain using an array of electrodes placed on the exposed cortex. ECoG provides high spatial and temporal resolution, a ... Read More >>
Top News

Trump nominates Marty Makary, who opposed COVID vaccine mandates, to head FDA...

President-elect Donald Trump has nominated a critic of COVID-19 health measures to lead the Food and Drug Administration....

News Source: CBS News on 2024-11-23

Amazon to invest another $4 billion in Anthropic, OpenAI’s biggest rival...

Amazon on Friday announced it would invest an additional $4 billion in Anthropic, the artificial intelligence startup founded by ex-OpenAI research executives....

News Source: NBC News on 2024-11-22

Amazon to invest an additional $4 billion in AI startup Anthropic...

Amazon is investing an additional $4 billion in the artificial intelligence startup Anthropic as major technology companies rush to fund generative AI...

News Source: ABC News on 2024-11-22

We met during the idyllic summer of 2021. Here’s how we’re staying radically...

'For Black people, hope isn’t just an optimistic outlook—it’s a survival mechanism,' write Aaron Long and Tynesha McHarris....

News Source: Fortune on 2024-11-22

Under U.S. antitrust fire, Alphabet stock drops 6%...

Plus: Gary Gensler exits, OpenAI mulls browser in the latest edition of Fortune's flagship tech newsletter....

News Source: Fortune on 2024-11-22