Search results
Results from the WOW.Com Content Network
where μ is the mean, σ is the standard deviation, E is the expectation operator, μ 3 is the third central moment, and κ t are the t-th cumulants. It is sometimes referred to as Pearson's moment coefficient of skewness , [ 5 ] or simply the moment coefficient of skewness , [ 4 ] but should not be confused with Pearson's other skewness ...
The median of a symmetric distribution which possesses a mean μ also takes the value μ. The median of a normal distribution with mean μ and variance σ 2 is μ. In fact, for a normal distribution, mean = median = mode. The median of a uniform distribution in the interval [a, b] is (a + b) / 2, which is also the mean.
Used in a reply to indicate that the previous email has been ignored. NMS, meaning Not Mind-Safe. Used to indicate that the content may be shocking or grotesque, helping the recipient to avoid potentially objectionable material. NNTO, meaning No Need To Open. The recipient is informed that they do not need to open the email; necessary ...
Icons are those signs that signify by means of similarity between sign vehicle and sign object (e.g. a portrait or map), indices are those that signify by means of a direct relation of contiguity or causality between sign vehicle and sign object (e.g. a symptom), and symbols are those that signify through a law or arbitrary social convention.
The mean of a set of observations is the arithmetic average of the values; however, for skewed distributions, the mean is not necessarily the same as the middle value (median), or the most likely value (mode). For example, mean income is typically skewed upwards by a small number of people with very large incomes, so that the majority have an ...
In mathematical formulas, the ± symbol may be used to indicate a symbol that may be replaced by either of the plus and minus signs, + or −, allowing the formula to represent two values or two equations. [2] If x 2 = 9, one may give the solution as x = ±3. This indicates that the equation has two solutions: x = +3 and x = −3.
Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!
The word symbol derives from the late Middle French masculine noun symbole, which appeared around 1380 in a theological sense signifying a formula used in the Roman Catholic Church as a sort of synonym for 'the credo'; by extension in the early Renaissance it came to mean 'a maxim' or 'the external sign of a sacrament'; these meanings were lost in secular contexts.