雎同学2020-02-13 22:31:14
雎同学括号里的话看不懂
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hank2020-02-20 09:23:07
hank同学，您好，这道题完整版应该是这样的，
An analyst determines that there is a 1/2 chance the economy will grow. If the economy grows, there is a 60% chance that ABC stock will raise in price and a 40% chance it will fall in price. If a recession occurs, there is a 15% chance ABC’S stock price will rise and an 85% chance the price will fall. Given that ABC stock has risen in price, what is the probability the economy has grown?
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Crystal2020-02-17 19:05:50
Crystal这个中间应该是有字段的，少东西。
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那怎么做 这道题
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