Math 113 - Exam 1 Study Guide (Chapters 1 - 2)


  1. Vocabulary: A definition is given. Match it to the term best defined. Sixteen terms. Not all terms are used. Know class marks, class boundaries, class limits, continuous data, discrete data, inter-quartile range, mean, median, midrange, mode, non-sampling error, parameter, population, qualitative data, quantitative data, range, sample, sampling error, skewed distribution, standard deviation, statistic, symmetric distribution, variance, and variation.
  2. A news article is given. Read the article and answer questions based on it. Know the types of sampling, self-selected surveys, sample size, how to convert a frequency to a percent, and why a large sample isn't necessarily a good thing. Read the Gallup Organization introduction on how polls are conducted for more information.
  3. Identify each variable as discrete or continuous. Four parts.
  4. A news article is given. Read the article and answer questions based on it. Know the types of sampling, how to find the number of people given the percentage, how to apply a margin of error to a sample, and list types of non-sampling error listed in the article.
  5. A news article is given. Read the article and answer questions based on it. Find the abuse of statistics in the article and know the difference between discrete and continuous random variables.
  6. Know which measures of central tendency or dispersion are most resistant to change and which are affected by extreme values. (MC).
  7. Know which measures of central tendency or dispersion use all the data values and which one's don't. (MC)
  8. Determine which type of sampling (random, systematic, stratified, cluster, convenience) is used. Five parts.
  9. You will be given the mean, median, range, standard deviation, and variance for a sample. A transformation is then applied to the data from the sample, and you need to indicate what the new values of the statistics are. Two parts. This is from the lab.
  10. Determine which of the four levels of measurement (nominal, ordinal, interval, ratio) is most appropriate. Six parts.
  11. The minimum, maximum, and desired number of classes is given. Find the class width. (MC)
  12. The minimum, maximum, and desired number of classes is given, find the limits for the first class. (MC)
  13. The class limits are given for a class. Find the class width. (MC)
  14. Given sample data, use the calculator or Statdisk to find the mean, standard deviation, variance, median, midrange, and first quartile.. If you use the calculator, you will need to know how to perform one variable statistics with your calculator with an xlist, but a frequency of one.
  15. Given a frequency distribution, use the calculator or Statdisk to find the mean, standard deviation, variance, and median. Find the modal class. If you use the calculator, you will need to know how to perform one variable statistics with your calculator with an xlist and frequency. You will also need to know how to find the class mark.

Notes:

Points per problem

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Total
16 8 4 12 7 2 2 5 10 6 2 2 2 12 10 100