Answered: Q-1: Specify the mathematical symbol…

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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Transcribed Image Text:7:31 AM @ 99% Edit 3 88 3 X $ Handout O ne-An O ver view of D escriptive Statistics-(Practice Problems) Q -1: Specify the mathematical symbdl used for each of the following descriptive measures. A. Sample mean B. Sample standard deviation C. Population mean D. Population stand deviation Q-2: How is a z-score obtained? What is the interpretation of a z-score? An observation has a z-score of 2.9. Roughly speaking, what is the relative standing of the observation? Q-3: Given the flowing index numbers for 10 years. Calculate arithmetic, geometric, hamonic means. | 102 101 | 95 105 87 85 | 112 110 112 Q -4: The number of children in each of the thirty families is as follows. Calculate median, Quartile, Quartiles, Decilei, percentileso, mean and mode. 3120|4|6|1|0|1|523| 3 0|7|220|3 122|4|24| 0|4|3|14| Q -5: For the data given below, calculate arithmetic, geometric, hamonic means, median, mode, S, mean deviation (M.D), Š, Coefficient of variation Cov, range, quartile deviation and interquartile range | -2 |5 |27 15 T4 0 3 |11 |-2 |0 |-1 4 0 Q -6: Caculate arithmetic, geometric, hamoric mears, medan, mode, S, (M.D), S, Cov, range, quartile deviation, interquartile range and its lower, upper limits of the following data. | 33.0 | 38.0 37.5 | 31.5 | 27.4 | 21.0 | 32.0 | 33.0 |17.4 |34.5 Q -7: A sample of 10 participating soldiers revealed the following data on total load mass, in kilograms. Calculate arithmetic, geometric, hamonic means, range, S, M.D, S? and coefficient of variation (CoV). |44 48 50 | 45 | 49 | 47 |37 54 40 43 Q -8: For the following frequency distribution, calculate arithmetic, geometric, hamonic means, median, mode, S, (M.D), S, Cov, quartile deviation, interquartile range and its lower, upper limits. Age Groups Frequency 10-12 12-14 14-16 42 16-18 18-20 8 14 26 30 Q -9: For the following frequency distribution, calculate arithmetic, geometric, hamonic means, median, mode, S, M.D, S?, range, Cov, quartile deviation, interquartile range andits lower, upper limits. Marks Obtained Number of students 0-9 10-19 20-29 30-39 40-49 8 Q -10: The following distribution gives the number of defective pieces in 100 unifom size samples of certain kind of bolt. Calculate arithmetic, geometric, harmonic means, medan, mode, S, M.D, S, range, Cov, quartile deviation, interquartile range and its lower, upper limits. No. of Defective Bolt Frequency 10-14 48 15-19 10 20-24 25-29 0-4 12 5-9 20 3 Q-11: The following data represent the lives, recorded in weeks, of 50 car batteries of a certain brand. Calculate arithmetic, geometric, hamonic means, median, mode, S, M.D, S?, CoV. Lifein Weeks No, of Batteries 31-35 14 16-20 26-30 8 36-40 41-45 46-50 21-25 6 8 6. 4 Q-12: The following table shows the measurement of heights (in c.m) of 100 students, calculate arithmetic, geometric, hamonic means, medan, mode, S, M .D, S, range and Cov. 145-154 14 Height (cm) Number of students 155-164 165-174 32 135-144 185-194 175-184 16 5 25 8 Q-13: The measurement of heights of 400 individuals is given inthe following table; calculate arithmetic, geometric, harmonic means, median, mode, S, M.D, S?, range, Cov, quartile deviation, interquartile range andits lower, upper limits. Height (C.m) No. of Indviduals 140-154 155-169 76 200-214 54 185-199 170-184 150 35 85 Q-14: The following table shows the monthly salaries of employees in a company, calculate arithmetic, geometric, harmonic means, median, mode, S, M.D, S?, range and CoV. Cale oAi 00 70n Lo00 o00 Lo00 onnl 1000 1000 1100 1100 1900 1200l 1900 13nn L1 400 1 A0n DO DO W Tools Mobile View Share PDF to DOC

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