Statistics 1.1—An Overview of Statistics Objective 1: I can define statistics ________ consists of information coming from _________, _________________, and ____________________. _______________ is the science of _______________, _______________, ______________, and ___________________ data in order to ______________________. Objective 2: I can distinguish between data sets. There are two types of data sets you will use when studying statistics. These data are called __________________ and ______________. A ____________________ is the collection of _______ outcomes, responses, measurements or counts that are of interest. A _____________ is the collection of ________ outcomes, responses, measurements, or counts. A sample is a __________ of the population. Read Example 1, pg 5 TIY 1: The US Department of Energy conducts weekly surveys of approximately 800 gas stations to determine average price per gallon of gas. In February 2007, the average price was $2.24 per gallon. Identify the sample and population. Two important terms that are used throughout this course are ____________ and ____________. A _________________ is a numerical description of a ________________ characteristic. A _________________ is a numerical description of a _________________ characteristic. *Hint: Read Example 2, pg 6. TIY 2: In 2006, major league baseball teams spent a total of $2,236,706,685 on players’ salaries. Does this numerical value describe a population parameter or a sample statistic? Objective 3: I can indentify the branches of statistics. The study of statistics has two major branches: __________________ and _________________ statistics. __________________ statistics is the branch of statistics that involves the _________________, ____________________ and ___________ of data. ___________________ statistics is the branch of statistics that involves using a _____________ to draw conclusions about a _________________. Example 3: Decide which part of each survey represents the descriptive branch. What conclusions might be drawn from the study using inferential statistics?