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2. Minimum mean square error - Wikipedia

   en.wikipedia.org/wiki/Minimum_mean_square_error

   Motivation. The term MMSE more specifically refers to estimation in a Bayesian setting with quadratic cost function. The basic idea behind the Bayesian approach to estimation stems from practical situations where we often have some prior information about the parameter to be estimated.

3. Coupon collector's problem - Wikipedia

   en.wikipedia.org/wiki/Coupon_collector's_problem

   In probability theory, the coupon collector's problem refers to mathematical analysis of "collect all coupons and win" contests. It asks the following question: if each box of a given product (e.g., breakfast cereals) contains a coupon, and there are n different types of coupons, what is the probability that more than t boxes need to be bought ...

4. QM-AM-GM-HM inequalities - Wikipedia

   en.wikipedia.org/wiki/QM-AM-GM-HM_Inequalities

   In mathematics, the QM-AM-GM-HM inequalities, also known as the mean inequality chain, state the relationship between the harmonic mean, geometric mean, arithmetic mean, and quadratic mean (also known as root mean square). Suppose that are positive real numbers. Then. These inequalities often appear in mathematical competitions and have ...

5. Mean square - Wikipedia

   en.wikipedia.org/wiki/Mean_square

   Mean square. In mathematics and its applications, the mean square is normally defined as the arithmetic mean of the squares of a set of numbers or of a random variable. [1] It may also be defined as the arithmetic mean of the squares of the deviations between a set of numbers and a reference value (e.g., may be a mean or an assumed mean of the ...

6. Rakuten.com - Wikipedia

   en.wikipedia.org/wiki/Rakuten.com

   This statement came shortly after Buy.com announced a 10% below Amazon.com cost on all books sold on the site and free shipping site-wide, with no minimum purchase required. At the time, Amazon had 25 million customers, approximately five times as many as Buy.com.

7. Root mean square - Wikipedia

   en.wikipedia.org/wiki/Root_mean_square

   In mathematics, the root mean square (abbrev. RMS, RMS or rms) of a set of numbers is the square root of the set's mean square. [1] Given a set , its RMS is denoted as either or . The RMS is also known as the quadratic mean (denoted ), [2] [3] a special case of the generalized mean. The RMS of a continuous function is denoted and can be defined ...

8. Expected mean squares - Wikipedia

   en.wikipedia.org/wiki/Expected_mean_squares

   Expected mean squares. In statistics, expected mean squares (EMS) are the expected values of certain statistics arising in partitions of sums of squares in the analysis of variance (ANOVA). They can be used for ascertaining which statistic should appear in the denominator in an F-test for testing a null hypothesis that a particular effect is ...

9. Prediction: These Could Be the Best-Performing Value Stocks ...

   www.aol.com/prediction-could-best-performing...

   Goldman Sachs recently predicted that data center power demand will grow 160% by 2030, which will lead to 3.3 billion cubic feet per day of new natural gas demand. Utilities will need to invest in ...