Average american breakfast
Average american breakfast this Wikipedia the language links are at the top of the page across from the article title. If all numbers in a list are the same number, then their average is also equal to this number.
This property is shared by each of the many types of average. Another universal property is monotonicity: if two lists of numbers A and B have the same length, and each entry of list A is at least as large as the corresponding entry on list B, then the average of list A is at least that of list B. In some types of average, the items in the list are assigned different weights before the average is determined. These include the weighted arithmetic mean, the weighted geometric mean and the weighted median. The arithmetic mean, the geometric mean and the harmonic mean are known collectively as the Pythagorean means. The mode, the median, and the mid-range are often used in addition to the mean as estimates of central tendency in descriptive statistics.
The most frequently occurring number in a list is called the mode. It may happen that there are two or more numbers which occur equally often and more often than any other number. In this case there is no agreed definition of mode. Some authors say they are all modes and some say there is no mode. The median is the middle number of the group when they are ranked in order. If there are an even number of numbers, the mean of the middle two is taken. Thus to find the median, order the list according to its elements’ magnitude and then repeatedly remove the pair consisting of the highest and lowest values until either one or two values are left.
This method takes the list 1, 7, 3, 13 and orders it to read 1, 3, 7, 13. Then the 1 and 13 are removed to obtain the list 3, 7. The mid-range is the arithmetic mean of the highest and lowest values of a set. A special case of the truncated mean, using the interquartile range. The table of mathematical symbols explains the symbols used below.
Other more sophisticated averages are: trimean, trimedian, and normalized mean, with their generalizations. However, this method for generating means is not general enough to capture all averages. This most general definition still captures the important property of all averages that the average of a list of identical elements is that element itself. A type of average used in finance is the average percentage return. It is an example of a geometric mean. The value of R that makes this equation true is 0.