Q1 Worksheet #1 - Importance of Statistics - Cayetano Arellano High School PDF

CAYETANO ARELLANO HIGH SCHOOL STATISTICS T. Alonzo St. Sta. Cruz Manila Mathematics Department Q1 – WORKSHEET #...

CAYETANO ARELLANO HIGH SCHOOL STATISTICS T. Alonzo St. Sta. Cruz Manila Mathematics Department Q1 – WORKSHEET # 1 Importance of Statistics Name: ____________________________________________ Yr. & Sec. ___________________ Score: ___________ School: _______________________________________ Teacher: ______________________ Date: ______________ Learning Competency: 1. Explains the importance of Statistics. 2. Poses problems that can be solved using statistics 3. Formulate simple statistical instruments. 4. Gathers statistical data. Learning Content: STATITICS – is a process that involves a series of steps. The statistical process is divided into four steps as follows: o Collection – refers to the gathering of information or data through different means such as observation, interview, testing, etc. o Organization and Presentation – refers to the process of grouping or classifying the collected data according to their characteristics and summarizing them using various formats such as textual, graphical and tabular forms. o Analysis – involves the description of the data collected and organized using some statistical methods and treatment. o Interpretation – includes the process of drawing out generalizations and conclusions based on the collected data, presented, and analyzed. Two Types of Statistical process o Descriptive statistics - Is a statistical procedure that aims to provide descriptions about a set of data. o Inferential statistics - Is a statistical procedure whose goal is to make predictions, inferences and generalization about a population based only on sample data. Population and Sample o Population - is a complete collection of elements such as scores, people and other entire group to be studied. o Sample - is a specific group that you will gather data from or a sub-collection of elements drawn from a population. It has a size lesser than the size of population. Parameter and Statistic o Parameter - Is a numerical value that provides description to the population. o Statistic - Is a numerical value that describes a characteristic of the sample. Qualitative and Quantitative Data o Qualitative - Categorical (Gender, religion, grade level, civil status, social class are some of the examples of qualitative data) o Quantitative - Numerical (Age, Height, Weight, Income, Shoe size, Test Scores, Temperature are some of the examples of quantitative data) Statistical instruments are devices or tools used to gather data. There are different statistical instruments that can be formulated and used to gather data depending on the needs. Listed below are some of the statistical instruments. o Questionnaire o Checklist o Rating o Scales o Test items Primary Data is the data gathered directly from an original sources. Secondary Data is the data gathered from secondary sources, such books, journals, magazines, or thesis of other researchers. Methods of gathering data o Interview o Observation o Questionnaire o Experimentation o Registration Prepared by: Jasna Marie A. Bautista Teacher II, C. Arellano High School Source: DepEd-Manila E-library  CAYETANO ARELLANO HIGH SCHOOL STATISTICS T. Alonzo St. Sta. Cruz Manila Mathematics Department Prepared by: Jasna Marie A. Bautista Teacher II, C. Arellano High School Source: DepEd-Manila E-library  CAYETANO ARELLANO HIGH SCHOOL STATISTICS T. Alonzo St. Sta. Cruz Manila Mathematics Department Prepared by: Jasna Marie A. Bautista Teacher II, C. Arellano High School Source: DepEd-Manila E-library  CAYETANO ARELLANO HIGH SCHOOL STATISTICS T. Alonzo St. Sta. Cruz Manila Mathematics Department Prepared by: Jasna Marie A. Bautista Teacher II, C. Arellano High School Source: DepEd-Manila E-library