For the 71 trading days from January 3,2017 , to April 18,2017 , the daily closing price of IBM stock (in \$) is well modeled by a Normal model with mean $174.848 and standard deviation $4.511. According to this model, and using the 68-95-99.7 Rule to approximate the probabilities rather than using technology to find the values more precisely, what is the probability that on a randomly selected day in this period the stock price closed a) above $179.36 ? b) below $183.87 ? c) between $161.32 and $188.38 ? d) Which would be more unusual, a day on which the stock price closed above $186 or below $167 ? a) The probability that the stock price closed above $179.36 is (Type an integer or a decimal. Do not round.) b) The probability that the stock price closed below $183.87 is (Type an integer or a decimal. Do not round) c) The probability that the stock price closed between $161.32 and $18838 is (Type an integer or a decimal. Do not round.) d) Which would be more unusual, a day on which the stock price closed above $186 or below $167 ? A. The more unusual day is if the stock closed above $186 because it has the smaller z-score. B. The more unusual day is if the stock closed below $167 because it has the smaller z-score. C. The more unusual day is if the stock closed below $167 because it has the larger absolute z-score D. The more unusual day is if the stock closed above $186 because it has the larger absolute z-score