Maths Sampling

ancillary Statistics Chapter 1: Introduction Statistical Methods in difficulty answer feeling 1: Step 2: Step 3: Step 4: Step 5: bring up Problems programme and Collect info Classify and Simplify Data tumble Data Draw Conclusions 1.1 Definition of statistics The word statistics has 2 meanings. 1. Statistics refers to mathematical facts. The student cosmos of UTAR is over 2000 in 2003. The ripen of a student, the passing percentage of an examination. Statistics refers to the field or rail of study. Statistics is a root of methods that are used to collect, analyze, present, and interpret selective information and to support decisions. 2. 1.2 Types of Statistics Statistics Descriptive statistics Inferential statistics 1. Descriptive Statistics Consists of methods for organizing, displaying, and describing data by victimisation tables, graphs, and synopsis mensurates. Deals with the description and analysis of a apt(p) group of data. Present information in a convenient, uncommitted and explicable form. Inductive Statistics (Inferential Statistics) Consists of methods that use sample results to make decisions or predictions approximately a population.

Deals with the problems of making inferences or drawing conclusions most population based on information obtained from the samples taken from the population. 2. Chapter 1 - 1 Ancillary Statistics 1.3 nation versus strain Population or Target Population Consists of both elements -- individuals, items, or objects -- whose characteristics are being studied. Sample A dispense of the population selected for study. Example 1.1 guess we wanted to study the big top of the students of UT! AR. To do so, degree centigrade students were selected randomly from all Faculties and their heights were measured. deposit the population and the sample. Population Parameter A numerical measure (mean, median, mode, range, variance, standard deviation) compute for a population data set. Sample statistic A summary measure...If you want to get a sound essay, order it on our website: OrderEssay.net

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