Unit 5 Statistics Study Guide Rated A+

biased sample {Ans: A sample that does not fairly represent the population. This is not what you want when you take a survey. (not valid)}sample {Ans: A relatively small proportion of people who are chosen in a survey so as to be representative of the whole.}voluntary response sample {Ans: A sample which involves only those who want to participate in the sampling. This is biased and not what you want when you take a survey.}double box plot {Ans: Two box plots graphed on the same number line.}convenience sample {Ans: Only members of the population who are easily accessible are selected to participate in a survey. This is biased or not good.}statistics {Ans: The study of collecting, organizing, and interpreting data.}mean {Ans: The average of a set of numbers. You add the numbers and divide by how many in the set to find the average.}simple random sample {Ans: An unbiased sample where each item or person in the population is as likely to be chosen as any other.}population {Ans: The entire group of people from which the samples under consideration are taken.}sample size {Ans: The number of individuals in a sample.}outlier