Elementary Statistics Exam #1 || with Error-free Solutions.

data correct answers consists of information coming from observations, counts, measurements, or responses. statistics correct answers -the science of collecting, organizing, analyzing, and interpreting data in order to make decisions -derived from the Latin word "status" meaning state involves more of counting births & deaths -divided into 2 fields (descriptive & inferential) data sets correct answers two types used to study in statistics: -population -samples population correct answers the collection of ALL outcomes, responses, measurements, or counts that are of interest Population Example: EX: the amount of energy collected from every wind turbine on a wind farm...what is the population? correct answers The energy amounts are a population bc the amounts represent a collection of amounts from ALL the wind turbines on the farm sample correct answers -a subset, or part, of a population -should be a representative of a population so it can be used to draw conclusions about population "Random sampling" is an appropriate method of ____ -a sample is used more than population bc data is used to draw conclusions about a population Sample Example: A survey of 500 spectators from a stadium with 42,000 spectators...what is the sample? correct answers The survey of 500 spectators is a sample bc it is a subset, or part, of the population of 42,000 spectators at the stadium Data Set Examples: A survey of 1015 U.S. adults found that 32% have had to put off medical care for themselves or their family in the past year due to cost. What are the data sets? correct answers Population: results from all adults in U.S. Sample: results from the 1015 U.S. adults included in the survey Data Set Examples: In a survey, 614 small business owners in the US were asked whether they thought their companys FB presence was valuable. 258 of the 614 said yes. What is the population and sample & describe the sample data set? correct answers The population consists of the responses of all small business owners in the US.