WordNet

in many cases or instances
occurring from time to time; "took an occasional glass of wine"
on certain occasions or in certain cases but not always; "sometimes she wished she were back in England"; "sometimes her photography is breathtaking"; "sometimes they come for a month; at other times for six months"
many times at short intervals; "we often met over a cup of coffee" (同)often, oftentimes, oft, ofttimes
a substance (such as sodium chloride) that lessens the hardness of water by replacing calcium and magnesium ions with sodium ions and so gives the water more efficient sudsing power
more often or more frequently
toned down

PrepTutorEJDIC

『しばしば』,たびたび,よく / 何度,何回
『時たまの』,時おりの / 《文》特別な場合のための / 《文》(家具が)予備の,補助の
『ときどき』,ときには
『しばしば』,たびたび
しばしば(often)

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出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2014/02/03 07:49:28」(JST)

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Histogram of travel time (to work), US 2000 census. Histograms depict the frequencies of observations occurring in certain ranges of values

In statistics the frequency (or absolute frequency) of an event is the number of times the event occurred in an experiment or study.^[1]^:12-19 These frequencies are often graphically represented in histograms.

Cumulative frequency refers to the total of the absolute frequencies of all events at or below a certain point in an ordered list of events.^[1]^:17-19

The relative frequency (or empirical probability) of an event refers to the absolute frequency normalized by the total number of events:

The values of for all events can be plotted to produce a frequency distribution.

Under the frequency interpretation of probability, it is assumed that as the length of a series of trials increases without bound, the fraction of experiments in which a given event occurs will approach a fixed value, known as the limiting relative frequency. This interpretation is often contrasted with Bayesian probability.

References[edit]

^ ^a ^b Kenney, J. F.; Keeping, E. S. (1962). Mathematics of Statistics, Part 1 (3rd ed.). Princeton, NJ: Van Nostrand Reinhold.

This statistics-related article is a stub. You can help Wikipedia by expanding it.

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Related Pictures

★リンクテーブル★

リンク元	「occasional」「as is often」「frequently」「時々」「sometimes」
拡張検索	「brain softening」

「occasional」

　　[★]

adj.

時折の、たまの。時々の、随時の
(～の)誘因となる(of)。偶然の。副次的な。

関: accident、accidental、accidentally、casual、casually、chance、fortuitous、often、sometimes

「as is often」

　　[★]

as,often

よく～するように
http://eow.alc.co.jp/as+is+often/UTF-8/

as is often evident from a patient's family history, many common disorders such as hypertension are significantly influenced by the genetic background.