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?
Note: Use the formula in the slides; here frequency distribution table is not provided.
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?
