Math 225N - Statistical Reasoning Chapter #1 Exam Questions With 100% Correct Answers

Math 225N - Statistical Reasoning Chapter #1 Exam Questions With 100% Correct Answers Data - answerconsists of information coming from observations, counts, measurements, or responses Statistics - answerThe science of collecting, organizing, analyzing, and interpreting data in order to make decisions Population - answerThe collection of all outcomes, responses, measurements, or counts that are of interest. Sample - answerA subset of the population Parameter - answerA number that describes a Population characteristic Statistic - answerA number that describes a Sample characteristic Descriptive Statistics - answerInvolves organizing, summarizing, and displaying data. (Tables, Charts, Averages) Inferential Statistics - answerInvolves using a sample data to draw conclusions about a population. QuaLitative Data - answerConsists of attributes, labels, or non-numerical entries QuaNtative Data - answerNumerical measurements or counts. Nominal Data (Lowest) - answerQualitative only; Uses names, labels, or qualities; NO MATH computations can be made at this level Ordinal Data (2nd) - answerQualitative or Quantitative; Arranged in order or ranked; Differences between data are not meaningful Interval Data (3rd) - answerQuantitative data ONLY; Can be ordered; Meaningful differences between data can be calculated; Not an inherent Zero-Zero is just a position on a scale Ratio Data (Highest) - answerQuantitative data ONLY; Can be ordered; Meaningful differences between data can be calc