Do Now Take out the article you brought for homework. Describe how it uses statistics. If you didn’t bring an article… maybe just use something that you remember reading.

Objectives 27.January.2011 Students will be able to… Define types of data.

Agenda Do Now (5 min) Homework (10 min) Types of data (25 min) Exit Ticket (5 min)

Homework

Types of Data Data are observations (measurements, genders, survey responses, and cetera) that have been collected. Statistics is a collection of methods for planning studies and experiments, obtaining data, and then organizing, summarizing, presenting, analyzing, interpreting, and drawing conclusions based on the data. Population – the complete collection of all elements. Census – collection of data from every member of the population. Sample – a subcollection of members from a population.

Types of Data Qualitative vs. Quantitative

Types of data Continuous vs. Discrete

Levels of Measurement Nominal Ordinal Interval Ratio

Exit Ticket What is the definition of ratio level of measurement. Give an example.