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Basic statistics •Statistics: “a bunch of mathematics used to summarize, analyze, and interpret a group of numbers or observations.” *It is a tool. Statistics are tools Statistics – singular means figures plural - body of knowledge German statastik political state Italian statista statesman 7. *Cannot replace your research design, your research questions, and theory or model you want to use.

Median is used over the mean since it is more robust to outlier values. This dream team relied not on classical economic models of what people ought to do but on empirical studies of what people actually do under different conditions. Basic probability concepts Conditional probability ... An Introduction to Basic Statistics and Probability – p. 10/40. Statistics is a discipline which is concerned with the collection and analysis of data based on a probabilistic approach. 3

It is used for collection, summarization, presentation and analysis of data.

Statistics provides a way of organizing data to get information on a wider and more formal (objective) basis than relying on personal experience (subjective). A basic box plot. The third quartile is the 75th percentile; i.e 75% of the points in the data fall below that value.

Statistics is the science of dealing with numbers. Probability Distributions The probability distribution for a random variable X ... Parameters vs. Statistics A parameter is a number that describes the population. Theories about a general population are tested on a smaller sample and conclusions are made about how well properties of the sample extend to the population at large. Chapter 1 A Review of Basic Statistical Concepts 5 assembled a dream team of behavioral economists to help him get elected—and then to tackle the economic meltdown. Basic Biostatistics Concepts and Tools Welcome This material includes a set of instructional modules, each containing a set of slide images accompanied by a video clip version of the associated lecture.

The line in the middle is the median value of the data.

This includes design issues as well.

The first quartile is essentially the 25th percentile; i.e 25% of the points in the data fall below that value. 6 Statistics The science of collecting, monitoring, analyzing, summarizing, and interpreting data.