For 300 trading​ days, the daily closing price of a stock​ (in$) is well modeled by a Normal model with mean ​$197.49197.49 andstandard deviation ​$7.147.14. According to this​ model, what isthe probability that on a randomly selected day in this period thestock 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 priceclosed above ​$210210 or below ​$190190​?
