For 300 trading days, the daily closing price of a stock (in
$) is well modeled by a Normal model with mean $197.49197.49 and
standard deviation $7.147.14. 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 $211.77211.77?
b) below $204.63204.63?
c) between $183.21183.21 and $211.77211.77?
d) Which would be more unusual, a day on which the stock price
closed above $210210 or...