For each Chapter, answer each question in your own words using no more than 2-3 properly constructed sentences . Be sure to include support for any “choice” answers. Use declarative sentences, citing factual information based on definitions, procedures, etc.
Chapter 1 1. Explain the difference between a population and a sample .
2. Explain the difference between quantitative variable and qualitative variable.
3. Explain the difference between descriptive statistics and inferential statistics.
Chapter 2 1. For a dataset, without constructing of the frequency distribution table; how to obtain the class width of frequency distribution table if the number of classes is given?
2. Explain the difference between a frequency distribution table and a relative frequency distribution table Chapter 3 1. Explain the difference between mean and median. Is mean always larger than median? 2. Explain the difference between µ and x . How do you determine which is appropriate to use in a problem?
3. Explain the difference between σ and s. How do you determine which is appropriate to use in a problem?
4. What is the relationship between variance and standard deviation?
5. Explain the difference between range and interquartile range.
6. Explain what the coefficient of variation is. What is the advantage of using it compared to standard deviation?
