Chapter 2: Q 2.17 (page 49)
What is the frequency distribution of qualitative data and why is it useful?
A frequency distribution of qualitative data is a table of definite values and their frequencies that is valuable since it provides a table of the values of the observation as well as the frequency with which it happens.
Over 30 million students worldwide already upgrade their learning with Vaia!
All the tools & learning materials you need for study success - in one app.
Get started for free
Identify an important reason for grouping data.
Answer true or false to each of the statements in parts (a) and (b), and explain your reasoning.
a. Two data sets that have identical frequency distributions have identical relative-frequency distributions.
b. Two data sets that have identical relative-frequency distributions have identical frequency distributions.
c. Use your answers to parts (a) and (b) to explain why relative frequency distributions are better than frequency distributions for comparing two data sets.
Ages of Householders. The ages of householders, given as a whole number
In this case, decide which type of grouping (single-value, limit, or cutpoint) is probably the best.
Sleep Aids. The additional sleep, to the nearest tenth of an hour, was obtained by a sample of patients by using a particular brand of sleeping pill. In this case, decide which type of grouping (single-value, limit, or cutpoint) is probably the best.
Discuss the relative advantages and disadvantages of stem-and leaf diagrams versus frequency histograms.
What do you think about this solution?
We value your feedback to improve our textbook solutions.
