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probability    音标拼音: [pr,ɑbəb'ɪləti]
n. 可能性,或然率,几率,概率

可能性,或然率,几率,概率

probability
或然率


probability
机率论

probability
机率

probability
n 1: a measure of how likely it is that some event will occur; a
number expressing the ratio of favorable cases to the whole
number of cases possible; "the probability that an unbiased
coin will fall with the head up is 0.5" [synonym:
{probability}, {chance}]
2: the quality of being probable; a probable event or the most
probable event; "for a while mutiny seemed a probability";
"going by past experience there was a high probability that
the visitors were lost" [ant: {improbability},
{improbableness}]

Probability \Prob`a*bil"i*ty\, n.; pl. {Probabilities}. [L.
probabilitas: cf. F. probabilit['e].]
[1913 Webster]
1. The quality or state of being probable; appearance of
reality or truth; reasonable ground of presumption;
likelihood.
[1913 Webster]

Probability is the appearance of the agreement or
disagreement of two ideas, by the intervention of
proofs whose connection is not constant, but appears
for the most part to be so. --Locke.
[1913 Webster]

2. That which is or appears probable; anything that has the
appearance of reality or truth.
[1913 Webster]

The whole life of man is a perpetual comparison of
evidence and balancing of probabilities.
--Buckminster.
[1913 Webster]

We do not call for evidence till antecedent
probabilities fail. --J. H.
Newman.
[1913 Webster]

3. (Math.) Likelihood of the occurrence of any event in the
doctrine of chances, or the ratio of the number of
favorable chances to the whole number of chances,
favorable and unfavorable. See 1st {Chance}, n., 5.
[1913 Webster]

Syn: Likeliness; credibleness; likelihood; chance.
[1913 Webster]

187 Moby Thesaurus words for "probability":
a thing for, accidentality, actuarial calculation,
actuarial prediction, adventitiousness, affinity, aftertime,
afteryears, anticipation, apocalypse, aptitude, aptness,
bare possibility, bent, best bet, bias, break, by-and-by, cast,
casualness, certainty, chance, chances, conatus, conceivability,
conceivableness, conduciveness, confidence, contemplation,
contingency, course ahead, crystal ball, delight, destiny,
determinism, diathesis, disposition, distant future, eagerness,
even chance, eventuality, expectancy, expectation, fate,
favorable prospect, feeling for, flukiness, foreboding, forecast,
forecasting, foreshowing, foresight, foretelling, fortuitousness,
fortuity, fortune, forward look, future, future tense, futurism,
futurity, gamble, good chance, good fortune, good luck,
good opportunity, good possibility, guesswork, hap, happenstance,
happy chance, heedless hap, hereafter, hope, how they fall,
immediate future, immediate prospect, imminence, improbability,
inclination, indeterminacy, indeterminateness, law of averages,
leaning, liability, liableness, likelihood, likeliness, liking,
lot, luck, main chance, moira, near future, obligation, odds,
odds-on, odds-on chance, off chance, offing, omen, opportunity,
outlook, outside chance, outside hope, penchant, possibility,
possibleness, posteriority, potential, potentiality, prediction,
predilection, predisposition, prefiguration, prefigurement,
prefiguring, prejudice, presage, presaging, presentiment,
preshowing, presignifying, presumption, principle of indeterminacy,
problematicness, proclivity, prognosis, prognostication, project,
promise, proneness, propensity, prophecy, prophesying, prospect,
prospectus, random sample, readiness, reliance, remote possibility,
risk, run of luck, sensitivity to, serendipity, small hope,
soft spot, soothsay, speculation, sporting chance,
statistical prediction, statistical probability, sure bet,
sure thing, susceptibility, tendency, the attainable, the breaks,
the feasible, the future, the morrow, the possible,
the sweet by-and-by, theory of probability, thinkability,
thinkableness, thought, time ahead, time just ahead, time to come,
tomorrow, tropism, turn, twist, unastonishment, uncertainty,
uncertainty principle, vaticination, virtuality, warp, weakness,
well-grounded hope, what is possible, what may be, what might be,
whatever comes, willingness


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  • Probability - Wikipedia
    The probability is a number between 0 and 1; the larger the probability, the more likely the desired outcome is to occur For example, tossing a coin twice will yield "head-head", "head-tail", "tail-head", and "tail-tail" outcomes
  • probability_百度百科
    Probability(英语单词,音标英 [ˌprɒbəˈbɪləti] 美 [ˌprɑːbəˈbɪləti])指事件发生的可能性,在数学中特指用0到1区间数值量化随机事件发生几率的概率概念,复数形式为probabilities。
  • Probability - Math is Fun
    How likely something is to happen Many events can't be predicted with total certainty The best we can say is how likely they are to happen, using the idea of probability When a coin is tossed, there are two possible outcomes: Also: When a single die is thrown, there are six possible outcomes: 1, 2, 3, 4, 5, 6
  • likelihood和probability的区别是什么? - 知乎
    三、 概率(probability)和似然(likelihood),都是指可能性,都可以被称为概率,但在统计应用中有所区别。 1 概率是给定某一参数值,求某一结果的可能性的函数。 例如,抛一枚匀质硬币,抛10次,6次正面向上的可能性多大?
  • 概率 - 维基百科,自由的百科全书
    在數學上,事件發生的機會可用一個數來表示,稱該數為 概率 (Probability)。 我們日常所見所聞的事件大致可分為兩種: 一种是确定性事件,其中又包含必然事件和不可能事件,如 太陽 從東方升起,或者在 標準大氣壓 下, 水 在100℃時會 沸騰,我們稱這些事件為必然事件;如掷一个點數只有1到6的 骰子,向上一面的数字是7,这類事件稱为不可能事件。 此外,有大量事件在一定條件下是否發生,是無法確定的。 如明天的氣溫比今天低、擲一枚 硬幣 得正面向上,又或者在下一年度的 NBA 比賽中, 芝加哥公牛隊 會奪得全年總冠軍,像以上可能發生也可能不會發生的事件稱為隨機事件。 機率論是一種用正式的用語表達機率概念的方式,這些詞語可以用數學及邏輯的規則處理,結果再轉換到和原來問題有關的領域。
  • Probability - Formula, Calculating, Find, Theorems, Examples
    Probability is all about how likely is an event to happen For a random experiment with sample space S, the probability of happening of an event A is calculated by the probability formula n (A) n (S)
  • 概率(统计学术语)_百度百科
    概率(Probability),亦称几率、机率或或然率,是数学中用于度量和刻画随机事件发生可能性大小的核心概念,将不确定性现象转化为介于 0 与 1 之间的实数进行定量描述。
  • Probability | Statistics and probability | Math | Khan Academy
    Probability tells us how often some event will happen after many repeated trials You've experienced probability when you've flipped a coin, rolled some dice, or looked at a weather forecast
  • 看见概率论 - 通过交互式演示理解经典概率论定理
    通过直观的交互式演示,深入理解概率论中的经典定理, 让抽象的数学概念变得生动有趣。 探索随机事件在大量重复试验中呈现的规律性,理解概率的收敛之美。 学习如何根据新的观察结果更新已有认知,体验概率推理的艺术。 探索最优投资策略,理解如何在收益与风险之间取得平衡。 学习识别和防范常见的统计误导手法,提高数据分析能力。 通过互动演示理解三门问题、生日问题等经典概率趣题。 为什么选择我们? 拖拽滑块、点击按钮,看概率论在眼前跳舞! 比读枯燥的教科书有趣一万倍。 从相亲概率到职场升职,原来概率论 就藏在生活的每个角落! 谁说学数学不能笑出声? 我们用段子手的文案讲最硬核的知识! 我们不断迭代优化,就像概率收敛一样, 越来越接近完美! "大数定理讲得太棒了!
  • 概率 (Probability)的定义和性质 - CSDN博客
    本文介绍了概率的基本定义及其性质,包括描述性和公理化定义,并详细解释了条件概率、乘法公式、全概率公式及贝叶斯公式等内容。





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