To explain: The difference between the values of
Answer to Problem 12WE
The difference between the
Explanation of Solution
Given information:
For a large sample of boys of the same age the correlation coefficient between mental age and height is 0.08. For the age group between 6 to 15 years the correlation is 0.78.
Consider the provided situation that for a large sample of boys of the same age the correlation coefficient between mental age and height is 0.08. For the age group between 6 to 15 years the correlation is 0.78.
The difference between above is due to various factors. Mental age depends on parental education, quality of nutrition provided to the child, brain development through activities.
Correlation coefficient close to 1 does not imply a cause-and-effect relationship.
Mental age and height are not related to each other as a person with a short height can be a genius and no so genius too. But every child is different from each other and born with different capabilities. So such comparisons cannot be done.
Thus, the argument is not valid. The cause-and-effect relationship does not imply.
Chapter 15 Solutions
Algebra and Trigonometry: Structure and Method, Book 2
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