Expected Value
Expected Value的音标为[?k?spekt?d ?ve?tl],中文翻译为“预期值”。其词源为数学中的概率论,表示的是在给定条件下,某一随机变量取值的平均数。在金融、经济等领域,预期值是一个重要的统计指标,用于评估投资或决策的风险。 #
Expected Value的速记技巧可以包括: #
1. 将期望值视为“平均预期收益”,即所有可能结果与其相应概率的乘积之和。
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2. 通过概率进行记忆,即概率之和等于1。 #
变化形式可以包括:
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预期收益、风险和概率三者相加等于预期效用。 #
概率乘以奖品等于期望值,而概率乘以零奖品等于零期望值。
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以上技巧可以帮助我们记住和运用Expected Value的概念。这些技巧需要结合实际应用场景来理解和记忆,并且需要反复练习,以便更好地掌握和应用。
"Expected Value"(预期价值)是一个经济学概念,表示在给定概率分布和结果的情况下,预期或预计的总体结果或回报。以下是一些与"Expected Value"相关的常用短语和例句: #
常用短语:
1. 预期收益:expected return
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2. 平均预期收益:average expected return #
3. 预期风险:expected risk
4. 预期回报率:expected return rate
5. 预期损失:expected loss
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6. 预期回报和风险平衡:expected return and risk balance
例句: #
1. 在投资决策中,我们需要考虑预期收益和预期风险,以做出明智的决策。(We need to consider expected returns and risks in investment decisions to make wise choices.) #
2. 彩票的预期价值取决于中奖的概率和奖品价值,因此购买彩票时要谨慎。(The expected value of lottery depends on the probability of winning and the prize value, so it's important to be cautious when purchasing lottery tickets.)
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3. 在赌博中,预期风险很高,因此需要谨慎评估自己的能力和风险承受能力。(In gambling, the expected risk is high, so it's important to carefully evaluate one's abilities and risk tolerance.)
4. 平均预期收益是投资者考虑的重要因素之一,因为它可以帮助他们预测长期回报。(The average expected return is one of the important factors that investors consider, as it helps them forecast long-term returns.)
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5. 预期损失可能会对公司的财务状况产生重大影响,因此需要谨慎评估和管理。(Expected losses may have a significant impact on a company's financial condition, so it's important to carefully assess and manage them.)
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6. 在决策过程中,我们需要平衡预期回报和预期风险,以做出最佳决策。(In decision-making, we need to balance expected returns and risks to make the best choice.)
7. 在体育博彩中,预期价值通常取决于胜算和赔率,因此需要仔细评估比赛情况和赔率。(In sports betting, the expected value usually depends on the odds and chances of winning, so it's important to carefully evaluate the game situation and odds.)
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