Concept explainers
a.
To show: The
a.
Explanation of Solution
Given:
The probability distribution is:
X | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
Probability | 0.68 | 0.05 | 0.07 | 0.08 | 0.05 | 0.04 | 0.01 | 0.02 |
Calculation:
The sum of probabilities is:
The probabilities are between 0 and 1 and the addition of probabilities is equal to 1. Thus, the provided probability distribution is a legitimate probability distribution.
b.
To construct: The graph for the probability distribution and interpret it.
b.
Explanation of Solution
Graph:
The graph could be constructed as:
Interpretation:
The most of the data is on the right side of the graph. Thus, the distribution is skewed to the right.
c.
To describe: The
c.
Answer to Problem 6E
The probability is 0.98
Explanation of Solution
Calculation:
Thus, the required probability is 0.98
d.
To express: The
d.
Answer to Problem 6E
The probability is 0.32.
Explanation of Solution
Calculation:
The event “workout at least once” in terms of Y could be written as
Thus, the required probability is 0.32.
Chapter 6 Solutions
The Practice of Statistics for AP - 4th Edition
Additional Math Textbook Solutions
Statistics: The Art and Science of Learning from Data (4th Edition)
Elementary Statistics
Elementary Statistics (13th Edition)
Statistics for Psychology
Elementary Statistics: Picturing the World (7th Edition)
An Introduction to Mathematical Statistics and Its Applications (6th Edition)
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