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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 $188 38 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? OA. The more unusual day is if the stock closed above $186 because it has the smaller z-score. OB. The more unusual day is if the stock closed below $167 because it has the smaller z-score. OC. 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

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 $188 38 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? OA. The more unusual day is if the stock closed above $186 because it has the smaller z-score. OB. The more unusual day is if the stock closed below $167 because it has the smaller z-score. OC. 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

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section: Chapter Questions
Problem 8CR
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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 $188 38 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? OA. The more unusual day is if the stock closed above $186 because it has the smaller z-score. OB. The more unusual day is if the stock closed below $167 because it has the smaller z-score. OC. The more unusual day is if the stock closed below $167 because it has the larger absolute z-score OD. The more unusual day is if the stock closed above $186 because it has the larger absolute z-score Next
Transcribed Image Text: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 $188 38 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? OA. The more unusual day is if the stock closed above $186 because it has the smaller z-score. OB. The more unusual day is if the stock closed below $167 because it has the smaller z-score. OC. The more unusual day is if the stock closed below $167 because it has the larger absolute z-score OD. The more unusual day is if the stock closed above $186 because it has the larger absolute z-score Next
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