The following data represents the age of 30 lottery winners. 22 31 33 39 43 44 45 46 46 46 53 54 55 60 61 64 64 66 71 71 73 73 76 77 Complete the frequency distribution for the data. Age Frequency 20-29 30-39 40-49 50-59 60-69 70-79 80-89 44 52 63 72 86 Enter an integer or decimal number [more..] I

The following data represents the age of 30 lottery winners. 22 31 33 39 43 44 45 46 46 46 53 54 55 60 61 64 64 66 71 71 73 73 76 77 Complete the frequency distribution for the data. Age Frequency 20-29 30-39 40-49 50-59 60-69 70-79 80-89 44 52 63 72 86 Enter an integer or decimal number [more..] I

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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Sixty students were given a history exam. Their scores are shown below, sorted from smallest to largest. 21 32 36 37 37 37 38 39 40 40 41 42 44 46 48 50 53 65 72 72 72 72 73 74 74 75 75 76 76 76 76 77 77 77 77 78 79 79 80 80 80 81 81 82 82 82 82 83 83 85 85 86 86 88 88 89 91 91 93 94 1) Compute the 5-number summary for this data: 12,_,_,_,94
Over the past several decades, the United Nations has kept records of the number of births worldwide, categorized by the age of the mother. A frequency table displaying this data for the years 1960 to 1970 is shown. Consider the class consisting of mothers between the ages of 40 and 45 years, who gave birth to an estimated 52,335,000 children worldwide between 1960 and 1970. Age of mother,in years Estimated number of occurrences,in thousands 15 – 20 125,075 20 – 25 312,055 25 – 30 300,458 30 – 35 217,581 35 – 40 131,236 40 – 45 52,335 45 – 50 10,577 Over the past several decades, the United Nations has kept records of the number of births worldwide, categorized by the age of the mother. A frequency table displaying this data for the years 1960 to 1970 is shown. Consider the class consisting of mothers between the ages of 40 and 45 years, who gave birth to an estimated 52,335,000 children worldwide between 1960 and 1970. What is the lower limit of this class?…
The following data represents the age of 30 lottery winners. 23 28 29 31 33 41 44 49 49 49 49 55 57 57 60 63 63 64 66 66 67 68 69 69 70 71 73 75 76 87 Complete the frequency distribution for the data. Age Frequency 20-29 30-39 40-49 50-59 60-69 70-79 A 80-89
Listed below are the ages (in years) of presidents at the time of their deaths. 67 90 83 85 73 80 78 79 68 71 53 65 74 64 77 56 66 63 70 49 57 71 67 71 58 60 72 67 57 60 90 63 88 78 46 64 81 93 Construct a frequency table. Use the class limits listed below. 45 - 49 50 – 54 55 – 59 60 – 64 65 – 69 70 – 74 75 – 79 80 – 84 85 – 89 90 – 94 95 – 99 Generate a histogram to represent the data.
Build the frequency distribution and graphs: histogram, frequency polygon and sectors of the grades in the final exam of an elementary course in statistics.
The IQ scores of 50 students are given below. 98 119 119 101 110 92 117 102 105 99 106 110 119 114 98 110 112 103 85 99 107 89 110 115 89 107 101 100 87 94 101 111 102 102 90 92 91 96 110 113 90 116 (a) Construct a grouped frequency distribution for the data. Use 85-89 for the first class and use the same width for each subsequent class. Class Frequency 85 - 89
Find the five-number summary of the scores in the Math 130 test pre-sented in Table 4.1, page 112. Draw the boxplot.
The table below displays marks of 120 students in mathematics at a faculty of science. Construct a frequency .polygon for their marks Marks Number of Students 30-35 10 36-41 12 42-47 14 48-53 10 54-59 20 60-65 24 66-71 18 72-77 8 78-83 4
Using 6 classes of width 50 starting at 100, construct a frequency distribution for the following numbers. 253 203 213 271 379 291 111 359 385 367 365 201 295 339
Among fatal plane crashes that occurred during the past 50 years, 668 were due to pilot error, 57 were due to other human error, 628 were due to weather, 449 were due to mechanical problems, and 325 were due to sabotage. Construct the relative frequency distribution. What is the most serious threat to aviation safety, and can anything be done about it? Cause Frequency Pilot error Other human error Weather Mechanical problems Sabotage % (Round to one decimal place as needed.) % %