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1. Classify each of the following variables as quantitative or qualitative and state their measurement scale. (a) Age (in years) (b) Age in categories (0-20, 21-35, 36-45, 45-60, 60-85, 85+) (d) Toxicity (mild, moderate, life-threatening, dead) (e) Blood pressure (f) Time of flight of a missile

1. Classify each of the following variables as quantitative or qualitative and state their measurement scale. (a) Age (in years) (b) Age in categories (0-20, 21-35, 36-45, 45-60, 60-85, 85+) (d) Toxicity (mild, moderate, life-threatening, dead) (e) Blood pressure (f) Time of flight of a missile

Big Ideas Math A Bridge To Success Algebra 1: Student Edition 2015
Big Ideas Math A Bridge To Success Algebra 1: Student Edition 2015
1st Edition
ISBN:9781680331141
Author:HOUGHTON MIFFLIN HARCOURT
Publisher:HOUGHTON MIFFLIN HARCOURT
Chapter11: Data Analysis And Displays
Section: Chapter Questions
Problem 10CT
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12:31 AM AME • 4_57830...4250162 8 Assignment One 1. Classify each of the following variables as quantitative or qualitative and state their measurement scale. (a) Age (in years) (b) Age in categories (0–20, 21–35, 36–45, 45–60, 60–85, 85+) (d) Toxicity (mild, moderate, life-threatening, dead) (e) Blood pressure (f) Time of flight of a missile 2. Consider the following score of 56 students out of 40 as data sets. 31 33 33 34 34 35 35 17 31 36 17 18 19 25 26 27 27 19 20 22 31 36 38 13 22 22 35 36 28 28 29 30 30 36 11 13 16 17 17 22 22 23 23 23 23 24 24 24 25 27 27 28 28 30 13 16 Use these data to prepare: (a) a frequency distribution, a relative frequency distribution and a cumulative frequency distribution. (b) a Histogram, frequency polygon and Ogive curve (c) Mean, Median and Mode. (d) Range, Mean deviation about mean, Mean deviation about median, Variance, Standard deviation and coefficient of variation and interpret the results. 3. A. The following is the frequency distribution of marks in Stat 1011 of 46 students (out of 20). Mark (x:) 10 11 12 13 14 15 16 17 18 Total No of students (f.) 1 2 6 10 11 3 46 Find the mean, median, mode, variance, standard deviation and coefficient of variation and interpret the results. 4. An investigator decided to construct a frequency distribution with five classes. The following information was available. For fifty observations made a characteristic under study, the first two and the last two frequencies were 6, 10, 10 and 6 respectively. Given the last class mark is 66 and upper class limit of the fifth class is 72. Complete the frequency distribution. Set by Kindu Kebede, Department of Statistics, Haramaya University Page 1 Assignment One 88 Mobile View Tools
Transcribed Image Text:12:31 AM AME • 4_57830...4250162 8 Assignment One 1. Classify each of the following variables as quantitative or qualitative and state their measurement scale. (a) Age (in years) (b) Age in categories (0–20, 21–35, 36–45, 45–60, 60–85, 85+) (d) Toxicity (mild, moderate, life-threatening, dead) (e) Blood pressure (f) Time of flight of a missile 2. Consider the following score of 56 students out of 40 as data sets. 31 33 33 34 34 35 35 17 31 36 17 18 19 25 26 27 27 19 20 22 31 36 38 13 22 22 35 36 28 28 29 30 30 36 11 13 16 17 17 22 22 23 23 23 23 24 24 24 25 27 27 28 28 30 13 16 Use these data to prepare: (a) a frequency distribution, a relative frequency distribution and a cumulative frequency distribution. (b) a Histogram, frequency polygon and Ogive curve (c) Mean, Median and Mode. (d) Range, Mean deviation about mean, Mean deviation about median, Variance, Standard deviation and coefficient of variation and interpret the results. 3. A. The following is the frequency distribution of marks in Stat 1011 of 46 students (out of 20). Mark (x:) 10 11 12 13 14 15 16 17 18 Total No of students (f.) 1 2 6 10 11 3 46 Find the mean, median, mode, variance, standard deviation and coefficient of variation and interpret the results. 4. An investigator decided to construct a frequency distribution with five classes. The following information was available. For fifty observations made a characteristic under study, the first two and the last two frequencies were 6, 10, 10 and 6 respectively. Given the last class mark is 66 and upper class limit of the fifth class is 72. Complete the frequency distribution. Set by Kindu Kebede, Department of Statistics, Haramaya University Page 1 Assignment One 88 Mobile View Tools
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