A、know
B、knew
C、had known
D、have known
A、know
B、knew
C、had known
D、have known
You have had a bank account for a few years. Recently you received a letter from the bank stating that your account is $240 overdrawn and that you will be charged $70 which will be taken directly from your account. You know that this information is incorrect.
Write a letter to the bank. Explain what has happened and say what you would like them to do about it.
You should write at least 150 words.
You do NOT need to write your own address.
Begin your letter as follows:
Dear Sir,
Consider an opportunity to invest in two Canadian stocks on an equally-weighted portfolio with return distributions as follow.(1) Calculate the expected returns and standard deviations of the returns for the two stocks. (2) Calculate the expected return and standard deviation of the return for the equally-weighted portfolio. (3) Calculate the covariance of the returns for Maple and Walrus. (4) Calculate the correlation coefficient for Maple and Walrus, and explain the relationship among the standard deviations for Maple, Walrus, and the portfolio?
A、have; when
B、had; than
C、had; when
D、did; when
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