Concept explainers
(a)
To explain:the reason for splitting the stems
(a)
Answer to Problem 46E
To get a better picture of the distribution, the stems are split.
Explanation of Solution
Given:
1 | 556 |
2 | 033344 |
2 | 55667778888899 |
3 | 113 |
3 | 55567778 |
4 | 33 |
4 | 77 |
The stem has been split to get a better picture of the distribution. It has gives two clear peaks at 2 and 3. Splitting of stem gives the better view or shape to the distribution.
(b)
To give: an appropriate key for this graph.
(b)
Answer to Problem 46E
2|4 means that 24 milligrams of caffeine content in 8-ounce can of carbonated beverage
Explanation of Solution
Key: 2|4 means that 24 milligrams of caffeine content in 8-ounce can of carbonated beverage.
(c)
To describe:the shape, center, and spread of the distribution and compare the caffeine content
(c)
Answer to Problem 46E
Shape:skewed to the right
Center: 28mg of caffeine per 8-ounce serving.
Spread: 15 mg to 47 mg of caffeine per 8-ounce serving.
Outliers: none
Explanation of Solution
Shape: the distribution is skewed to the right, because most of the data values lies near the top of the stemplot.
Center: the center of the distribution can be represented as the
Spread: the smallest value is 15 mg and the largest value is 47 mg. thus, the spread will be from 15 mg to 47 mg of caffeine per 8-ounce serving.
Outliers: there do not appear to be any outliers, because there are no gaps in the stemplot (there are no stems without leaves).
Chapter 1 Solutions
The Practice of Statistics for AP - 4th Edition
Additional Math Textbook Solutions
Introductory Statistics (2nd Edition)
Elementary Statistics: Picturing the World (7th Edition)
Essentials of Statistics (6th Edition)
Intro Stats, Books a la Carte Edition (5th Edition)
An Introduction to Mathematical Statistics and Its Applications (6th Edition)
Introductory Statistics (10th Edition)
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