Question

review for test on frequency distributions, histograms, frequency polygon & cumulative graph (ogive)
determine whether each statement is true or false. if the statement is false, explain why.

1. in the construction of a frequency distribution, it is a good idea to have overlapping class limits, such as 10 - 20, 20 - 30, 30 - 40.
2. it is not important to keep the width of each class the same in a frequency distribution.
3. frequency distributions can help a researcher draw charts and graphs.

fill - in - the - blank with the best answer.

1. the three types of frequency distributions are ____, __, and ____.

Explanation:

1. Overlapping class limits cause ambiguity (a value like 20 could belong to two classes), so they should not be used.
2. Consistent class width ensures fair comparison and accurate visualization of data patterns.
3. Frequency distributions organize raw data, which is the foundation for creating charts like histograms or ogives.
4. These are the three core categories of frequency distributions used in data analysis.

Answer:

1. False. Overlapping limits cause value ambiguity.
2. False. Consistent class width ensures valid comparisons.
3. True.
4. categorical frequency distributions, grouped frequency distributions, ungrouped frequency distributions