For 300 trading? days, the daily closing price of a stock? (in$) is well modeled by a Normal model with mean ?$196.38 andstandard deviation $7.13.
According to this ?model, what is the probability that on arandomly selected day in this period the stock price closed asfollows.
?a) above ?$203.51?
?b) below ?$210.64??
?c) between ?$182.12 and ?$210.64?
?d) Which would be more? unusual, a day on which the stock priceclosed above ?$206 or below ?$180?
