Chi-squared Test


Chi-squared test is a statistical hypothesis test that determines whether there is a significant difference between the expected frequencies and the observed frequencies in one or more categories. It is used to analyze categorical data and is commonly used in fields such as genetics, marketing research, and social sciences. The test involves calculating the difference between the observed and expected frequencies, squaring the difference, dividing by the expected frequency, and summing across all categories. The resulting statistic follows a chi-squared distribution, and the p-value is used to determine the significance of the difference. A low p-value indicates that the observed frequencies are significantly different from the expected frequencies, while a high p-value indicates that the observed frequencies are not significantly different from the expected frequencies.


Your Previous Searches
Random Picks

  • Transmission Rate: Transmission rate refers to the rate at which a disease or infection is transmitted from one individual to another. In data science, transmission rate is used to model the spread of infectious diseases using mathematical models such as the ... Read More >>
  • Biomedical Signal Analysis: Biomedical Signal Analysis is the process of extracting meaningful information from physiological signals such as electroencephalogram (EEG), electrocardiogram (ECG), electromyogram (EMG), and many others. It involves the use of various sig ... Read More >>
  • Iterative Cycle: Iterative cycle is a process of repeating a set of steps or tasks until a desired outcome is achieved. In data science, an iterative cycle is often used in the development of machine learning models. The process involves several steps such ... Read More >>
Top News

Uber CEO Dara Khosrowshahi calls Elon Musk's vision for Tesla robotaxis 'pretty ...

Uber CEO Dara Khosrowshahi appeared on Friday's episode of the Hard Fork podcast, where he spoke about the future of the autonomous vehicle industry....

News Source: Business Insider on 2024-10-20

After Cynthia Erivo Called "Wicked" Fan Art "Offensive," Ariana Grande Has Offer...

"It's so much bigger than us."View Entire Post ›...

News Source: Buzzfeed on 2024-10-20

Google Research execs reveal how they use AI in their daily lives — and where ...

Google execs on the Research team told Business Insider their favorite uses of AI, like looking up products with Lens or translating pages....

News Source: Business Insider on 2024-10-20

Google DeepMind CEO Demis Hassabis explains what needs to happen to move from ch...

Demis Hassabis, the CEO of Google DeepMind, recently discussed what he thinks will be the next phase of AI after chatbots....

News Source: Business Insider on 2024-10-19

This is OpenAI CEO Sam Altman's favorite question about AGI...

Altman said artificial general intelligence will facilitate "scaffolding that exists between all of us."...

News Source: Business Insider on 2024-10-19