When constructing a frequency distribution, classes should be selected so that they are of equal width.
举一反三
- True or False: When constructing a frequency distribution, classes should be selected so that they are of equal width.
- Which of the following best describes a frequency distribution A frequency distribution is a grouping of:（） A: data into intervals (classes) so that the number of observations in each of the non - overlapping intervals (classes) can be seen and tallied. B: selected data into intervals (classes) so that the number of observations in each of the non - overlapping intervals (classes) can be seen and tallied. C: dependent intervals (classes) so that they can be seen and tallied.
- In a frequency distribution histogram, the frequency of an interval is given by the:（） A: width of the corresponding bar. B: height multiplied by the width of the corresponding bar. C: height of the corresponding bar.
- When studying the simultaneous responses to two categorical questions, we should set up a( ). A: contingency table. B: frequency distribution table. C: cumulative percentage<br/>distribution table. D: histogram.
- The percentage distribution cannot be constructed from the frequency distribution directly.