Stat 231 Exam 1 with correct answers

Stat 231 Exam 1 with correct answers


Statistics - ** VERIFIED ANSWERS🔰 ✔✔The science of planning studies and
experiments, obtaining data, and the organizing, summarizing, presenting, analyzing,
interpreting, and drawing conclusions based on the data.



Goal of statistics - ** VERIFIED ANSWERS🔰 ✔✔Usually the goal of statistics is to collect
data from a small part (subset) of a larger group so that we can learn something about the
larger group.



Parameters - ** VERIFIED ANSWERS🔰 ✔✔Numerical summaries of a population. (Greek
letters denote parameters)



Descriptive statistics - ** VERIFIED ANSWERS🔰 ✔✔Numerical summaries of a sample



Inferential statistics - ** VERIFIED ANSWERS🔰 ✔✔Generalize the information learned
from the sample to the entire population



Variable - ** VERIFIED ANSWERS🔰 ✔✔A characteristic of interest



Data - ** VERIFIED ANSWERS🔰 ✔✔Values (observations) the variable can assume



Popukarion - ** VERIFIED ANSWERS🔰 ✔✔The complete collection of all elements,
objects, individuals, or events to be studied.



Sample - ** VERIFIED ANSWERS🔰 ✔✔A subset of members selected from the population