MATH 141 Lecture Notes - Lecture 1: Categorical Variable, Blood Type, Level Of Measurement

• School: Bloomsburg University
• Department: Mathematics
• Course: MATH 141
• Professor: Zhang

Document Summary

Statistics is used for multiple different things like, judgment (weather predictions, stocks), modeling, finding patterns and predictions, and finding the population and the sample of a study. There are four steps to have a successful survey: collecting data make conclusions based on data. You can do nothing without data: classifying or summarizing well prepare collected data for future notes, analyzing data use multiple ways to analyze data to draw conclusions. Interpreting the results explain your results (numbers, tables, graphs). It is very important to put the information you are trying to show into words in ways that others can understand. You need to use a simple random sample to choose who you will survey. Sample (srs) is a sample of size n that is chosen from a population in a way that all of the population has an equal chance of being selected. Population a unique set with all possible subjects on interest in the research.