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Lecture Notes on Descriptive/Inferential Statistics - Basics | MATH 220, Study notes of Statistics

Chapter 1 Notes Material Type: Notes; Professor: Heatwole; Class: ELEM STATISTICS [C3T1G1]; Subject: Mathematics; University: James Madison University; Term: Fall 2010;

Typology: Study notes

2009/2010

Uploaded on 12/15/2010

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Chapter 1- Descriptive/Inferential Stats, Basics
Statistics is the at and science of learning from data
Design- planning an investigative study, such as how to obtain relevant data
Sample- subjects for whom we have data
Population- all subjects of interest
Descriptive Statistics- refers to methods of summarizing the data
(graphs/averages/percents)
oBar Graph, Pie Chart, Dot Plot, Stem-and-Leaf Plot, Histogram
Inferential Statistics- refers the methods of making decision or predictions
about a population, based on data obtained from a sample of that population
Parameter- a numerical summary of the population
Statistic- a numerical summary of a sample taken from the population
Random Sampling- each subject in the population has the same chance of
being in the sample

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Chapter 1- Descriptive/Inferential Stats, Basics  Statistics is the at and science of learning from data  Design- planning an investigative study, such as how to obtain relevant data  Sample - subjects for whom we have data  Population- all subjects of interest  Descriptive Statistics- refers to methods of summarizing the data (graphs/averages/percents) o Bar Graph, Pie Chart, Dot Plot, Stem-and-Leaf Plot, HistogramInferential Statistics- refers the methods of making decision or predictions about a population, based on data obtained from a sample of that population  Parameter- a numerical summary of the population  Statistic- a numerical summary of a sample taken from the population  Random Sampling- each subject in the population has the same chance of being in the sample