(a)
To find: whether the plot show a positive association or not
(a)
Answer to Problem 3E
The plot shows a positive association between the two variables.
Explanation of Solution
Given:
Calculation:
The figure below shows a
The graph shows a clear direction: the overall pattern moves from lower left to upper right. That is, states in which students with higher
(b)
To find:the form of the relationship and explain whether it is very strong or not
(b)
Answer to Problem 3E
The form of the relationship is linear. The relationship is moderately strong
Explanation of Solution
The form of the relationship is linear. That is, the overall pattern follows a straight line from lower left to upper right. The relationship is moderately strong because the points don’t deviate greatly from line but there are some outliers.
(c)
To find:the approximate IQ and GPA for the student
(c)
Answer to Problem 3E
The student has IQscore
Explanation of Solution
In Figure point
Chapter 3 Solutions
The Practice of Statistics for AP - 4th Edition
Additional Math Textbook Solutions
Essentials of Statistics, Books a la Carte Edition (5th Edition)
Elementary Statistics
Elementary Statistics: Picturing the World (6th Edition)
An Introduction to Mathematical Statistics and Its Applications (6th Edition)
Introductory Statistics (2nd Edition)
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