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7#
发表于 2012-3-22 11:15
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Use a stated rate of 9% compounded periodically to answer the following three questions. Select the choice that is the closest to the correct answer.The semi-annual effective rate is:
First, we need to calculate the periodic rate, or 0.09 / 2 = 0.045.
Then, the effective semi-annual rate = (1 + 0.045)2 − 1 = 0.09203, or 9.20%.
The quarterly effective rate is:
First, we need to calculate the periodic rate, or 0.09 / 4 = 0.0225.
Then, the effective annual rate = (1 + 0.0225)4 − 1 = 0.09308, or 9.31%.
The continuously compounded rate is:
The continuously compounded rate = er − 1 = e0.09 − 1 = 0.09417, or 9.42%.
Calculator Keystrokes for et: Using the TI BA, enter [0.09] [2nd] [ex] (this is the key with LN on the face of the button). On the HP, enter [0.09] [g] [ex] (this key is located in blue on the key with 1/x in white print). |
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