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1. The total area under the normal curve is a. -1 b. 0 c. 0.5 d. 1

1. The total area under the normal curve is a. -1 b. 0 c. 0.5 d. 1

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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1. The total area under the normal curve is a. -1 b. 0 c. 0.5 d. 1 2. The normal curve is bell-shaped. a. False b. True c. Sometimes d. It depends 3. Which part of the normal curve is extended indefinitely in both directions along the horizontal axis, approaching but never touching it? a. center b. tail c. top d. spread 4. Under the curve, the area to the left of the mean is a. 30% b. 47.72% c. 50% d. 68 5. Which of the following statements is CORRECT about the shape of the normal curve? a. The shape of the normal curve is based on the given Mean and Standard Deviation of the distribution. b. The shape of the normal curve is based on the given Mean and Median of the distribution. c. The shape of the normal curve is based on the given area and standard Deviation of the distribution. d. All of the above 6. Which of the following statements is the characteristic of a normal probability distribution? a. The three measures of central tendency such as mean, mode, and median are equal. b. The three measures of central tendency such as mean, mode, and median are not equal c. The two measures of central tendency such as mean and mode are equal while the median is greater than zero d. The two measures of central tendency such as mean and mode are equal while the median is less than zero. 7. Suppose that distribution of data about the number of deaths of COVID 19 positive has a mean of 45 and a standard deviation of 18. How many standard deviations away from the mean is a value of 81? a. It is one standard deviation above the mean b. It is two standard deviations above the mean c. It is one standard deviation below the mean d. It is two standard deviations below the mean
Transcribed Image Text:1. The total area under the normal curve is a. -1 b. 0 c. 0.5 d. 1 2. The normal curve is bell-shaped. a. False b. True c. Sometimes d. It depends 3. Which part of the normal curve is extended indefinitely in both directions along the horizontal axis, approaching but never touching it? a. center b. tail c. top d. spread 4. Under the curve, the area to the left of the mean is a. 30% b. 47.72% c. 50% d. 68 5. Which of the following statements is CORRECT about the shape of the normal curve? a. The shape of the normal curve is based on the given Mean and Standard Deviation of the distribution. b. The shape of the normal curve is based on the given Mean and Median of the distribution. c. The shape of the normal curve is based on the given area and standard Deviation of the distribution. d. All of the above 6. Which of the following statements is the characteristic of a normal probability distribution? a. The three measures of central tendency such as mean, mode, and median are equal. b. The three measures of central tendency such as mean, mode, and median are not equal c. The two measures of central tendency such as mean and mode are equal while the median is greater than zero d. The two measures of central tendency such as mean and mode are equal while the median is less than zero. 7. Suppose that distribution of data about the number of deaths of COVID 19 positive has a mean of 45 and a standard deviation of 18. How many standard deviations away from the mean is a value of 81? a. It is one standard deviation above the mean b. It is two standard deviations above the mean c. It is one standard deviation below the mean d. It is two standard deviations below the mean
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