True or False: When constructing a frequency distribution, classes should be selected so that they are of equal width.
举一反三
- 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.
- True or False: Determining the class boundaries of a frequency distribution is highly subjective.
- True or False: The original data values cannot be determined once they are grouped into a frequency distribution table.
- True or False: A research analyst was directed to arrange raw data collected on the yield of wheat, ranging from 40 to 93 bushels per acre, in a frequency distribution. He should choose 30 as the class interval width.