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  2. Coefficient of determination - Wikipedia

    en.wikipedia.org/wiki/Coefficient_of_determination

    Ordinary least squares regression of Okun's law.Since the regression line does not miss any of the points by very much, the R 2 of the regression is relatively high.. In statistics, the coefficient of determination, denoted R 2 or r 2 and pronounced "R squared", is the proportion of the variation in the dependent variable that is predictable from the independent variable(s).

  3. List of research universities in the United States - Wikipedia

    en.wikipedia.org/wiki/List_of_research...

    R2: Doctoral Universities – High research activity D/PU: Doctoral/Professional Universities In the 2018 classification, institutions were classified as either R1 or R2 if they "conferred at least 20 research/scholarship doctorates in 2016-17 and reported at least $5 million in total research expenditures."

  4. Coefficient of multiple correlation - Wikipedia

    en.wikipedia.org/wiki/Coefficient_of_multiple...

    Higher values indicate higher predictability of the dependent variable from the independent variables, with a value of 1 indicating that the predictions are exactly correct and a value of 0 indicating that no linear combination of the independent variables is a better predictor than is the fixed mean of the dependent variable. [2]

  5. Effect size - Wikipedia

    en.wikipedia.org/wiki/Effect_size

    In statistics, an effect size is a value measuring the strength of the relationship between two variables in a population, or a sample-based estimate of that quantity. It can refer to the value of a statistic calculated from a sample of data, the value of one parameter for a hypothetical population, or to the equation that operationalizes how statistics or parameters lead to the effect size ...

  6. Rivian's Stock Is Surging After It Reported More Deliveries ...

    www.aol.com/rivians-stock-surging-reported-more...

    In addition, I expect the company to detail its expectations for 2025, which could be a year of treading water ahead of the planned launch of its higher-volume R2 models in mid-2026.

  7. Polynomial regression - Wikipedia

    en.wikipedia.org/wiki/Polynomial_regression

    Polynomial regression models are usually fit using the method of least squares.The least-squares method minimizes the variance of the unbiased estimators of the coefficients, under the conditions of the Gauss–Markov theorem.

  8. 2026 Rivian R2 Revealed as a Smaller EV SUV That Will Start ...

    www.aol.com/2026-rivian-r2-revealed-smaller...

    The R2 is expected to start at around $45,000 and is promised for mid-2026; the company is taking deposits now. Following up on the success of its R1 line of electric trucks and SUVs, Rivian has ...

  9. Black Friday shoppers spent a record $10.8 billion online ...

    www.aol.com/black-friday-online-sales-track...

    People didn't just fill their plates this Thanksgiving weekend -- data shows they also filled their online shopping carts. Black Friday online shopping this year set a new high, reaching $10.8 ...