Learning Materials
Features
Discover
Chapter 2: Q. 2.27 (page 50)
For each data sets in Exercises2.26-2.31,
a. determine a frequency distribution.
b. obtain a relative-frequency distribution.
c. draw a pie chart.
d. Construct a bar chart.
d
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
We used slightly different methods for determining the "middle" of a class with limit grouping and cut point grouping. Identify the methods and the corresponding terminologies.
For instance, consider the grouped days-to-maturity data given in Table (b) on page .
From that table, we see that the cumulative frequency of investments with a maturity period of less than day is and, therefore, the cumulative relative frequency is.
Table shows all cumulative information for the days-to-maturity data.
Cumulative information for days-to-maturity data.
a. Round each observation to the nearest year and then construct a stem-and-leaf diagram of the rounded data.
b. Truncate each observation by dropping the decimal part, and then construct a stem-and-leaf diagram of the truncated data.
c. Compare the stem-and-leaf diagrams that you obtained in parts (a) and (b).
Explain the meaning of
Qualitative Variable
Discrete, Quantitative Variable
Continuous, Quantitative Variable
Explain the advantages and disadvantages of frequency histograms versus frequency distributions.
The Court's Burrow. The subterranean color (Spalacopus cyan) is a social rodent that lives in large colonies in underground burrows that can reach lengths of up to 600 meters. Zoologists S. Begall and M. Gallardo studied the characteristics of the burrow systems of the subterranean color in central Chile and published their findings in the Journal of Zoology, Landen (Vol. 251, pp. 53-60). A sample of 51 burrows, whose depths were measured in centimeters, yielded the following frequency histogram.
What do you think about this solution?
We value your feedback to improve our textbook solutions.
Explanations 
Textbooks 
Exams 
GCSE 
IGCSE 
AS 
A Level 
International A Level 
University Admissions Tests 
Flashcards 
Vaia AI 
Notes 
Study Plans 
Study Sets 
Find a job 
Find a degree 
Student Deals 
Magazine 
Mobile App