Question
For 300 trading days, the daily closing price of a stock (in $) is well modeled...
For 300 trading days, the daily closing price of a stock (in $) is well modeled by a Normal model with mean $195.36 and standard deviation $7.12. According to this model, what is the probability that on a randomly selected day in this period the stock price closed as follows.
a) above $202.48?
b) below $209.60?
c) between $181.12 and $209.60?
d) Which would be more unusual, a day on which the stock price closed above $206 or below $180?
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