SCIENCE IN PRACTICE - FINAL EXAM - DESCRIPTIVE & INFERENTIAL STATISTICS ACTUAL 2025/2026 QUESTIONS AND 100% CORRECT ANSWERS

SCIENCE IN PRACTICE - FINAL EXAM - DESCRIPTIVE & INFERENTIAL STATISTICS ACTUAL 2025/2026 QUESTIONS AND 100% CORRECT ANSWERS Define *statistics*. - Answer -The science of collecting, organizing, summarizing, analyzing, and making inference from data. Name 2 types of statistics. - Answer -1) *descriptive* statistics 2) *inferential* statistics (*parametric* & *non-parametric* statistics) *Descriptive statistics* is a _____ description of the measures of ________ characteristics of a population (parameter). It is used to ____________ the shape, central tendency and variability within a set of data, often with the intent to ________ the population. Statistic = descriptive index computed from ______ data. - Answer -basic; specific; characterize; describe; sample Name the different types of descriptive statistics. - Answer -1) *organizing* data: tables, graphs 2) *summarizing data*: central tendency, variationWhat are 2 types of *tables* used in descriptive statistics? - Answer -1) frequency distributions 2) relative frequency distributions What are 3 types of *graphs* used in descriptive statistics? - Answer -1) bar chart or histogram 2) stem and leaf plot 3) frequency polygon What are 3 types of *central tendency* (or groups' "middle values") used in descriptive statistics? - Answer -1) mean 2) median 3) mode What are 5 types of *variation* (