Examlex
Use identities to fill in the blank with the appropriate trigonometric function name.
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Beta
A symbol often representing the type II error rate in hypothesis testing, or a measure of risk exposure in finance.
Type II Error
A statistical error that occurs when one fails to reject a false null hypothesis.
Alpha
In statistics, alpha represents the level of significance, the probability of rejecting the null hypothesis when it is actually true, commonly set at 0.05 or 5%.
Beta
In statistics, it often refers to the probability of making a Type II error, or in finance, a measure of how much a stock's price could move in relation to the market.
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