Chapter 5 [Compatibility Mode] - Chapter 5 Organization of...

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1Chapter 5Organization of DataChapter 5. Organization of DataDefinition of Raw Data (page 164)Definition 5.1.Raw dataare data in their original form.* Raw data have not been organized in anymanner and observations are recorded inthe order observed.
2Chapter 5. Organization of DataExample of Raw Data Table C.1Final Grades of a Sample of Statistics 101 Students (page 612) Chapter 5. Organization of DataDefinition of array (page 165)Definition 5.2.The arrayis an ordered arrangement of data according to magnitude. * It may be in ascending or descending order. An array is also called sorted dataor ordered data.
3Chapter 5. Organization of DataExercise #1 (page 166)Use the given the data on the total land area (in hectares) of the different provinces in the Philippines to do the following:a) Arrange the provinces by land area in descending order.b) Give the top ten provinces in terms of land area.c) Identify the province with the smallest land area.d) Determine the range of values of the total land area.e) Determine the number of provinces with land area below 100,000 hectares.Example of an ArrayTable 5.1. Array of Final Grades (page 165)Chapter 5. Organization of Data
4Chapter 5. Organization of DataUsing ExcelCreate an Excel file with 4 variables: Code, Region, Province and Land Area. Steps:Highlight cells containing data (including column labels). Click Data/Sort.Fill up dialogue box. Identify sorting variable in Sort by box. Click the desired arrangement (ascending or descending). Click Header Row since highlighted cells include column labels.Chapter 5. Organization of DataAssignment:Exercise #2, page168 a,b,d
5Chapter 5. Organization of DataExample of Single Value Grouping (Example 5.3, page 169)Suppose we have data on the number of children of 50 currently married women using any moderncontraceptive method. Construct its frequency distribution. Definition of Frequency Distribution (page 168)Definition 5.3.Thefrequency distributionis a way of summarizing data by showing the number of observations that belong in the different categories or classes. Notes: This is also called grouped data.The classes may be distinct values/qualitative categories or the classes may be intervals of values of the variable. If the classes are distinct values then the frequency distribution is called single value grouping. If the classes are intervals of values then the frequency distribution is called grouping by class intervals.Chapter 5. Organization of Data0 0 1 2 2 2 3 3 4 4 0 0 1 2 2 3 3 3 4 4 0 1 1 2 2 3 3 3 4 4 0 1 1 2 2 3 3 3 4 5 0 1 1 2 2 3 3 3 4 5 We use single value grouping since there are only a few distinct values in the data set. Distribution of Married Women Using any Modern Contraceptive by Number of Children Number of Children No. of Married Women 0 7 1 8 2 11 3 14 4 8 5 2
6Chapter 5. Organization of DataExamples of Grouping by Class Intervals (Example 5.4, page 169)Table 5.4 a Table 5.4 b Table 5.4 c Final Grade No. of Students Final Grade No. of Students Final Grade No. of Students 40 - 49 8 40 - 46 7 40 - 45 7 50 - 59 23 47 - 53 9 46 - 51 6

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