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Chapter 3: Q 18. (page 173)

More crying? Refer to Exercise 16Does the fact that r=0.45 suggest that making an infant cry will increase his or her IQ later in life? Explain your reasoning.

Short Answer

Expert verified

No.

Step by step solution

01

Given information

02

Explanation

From Exercise 16it is known there exists a weak correlation between the two variables.

The correlation is a statistical measure that is used to explain the relationship between two variables.

The exercise's association reveals a weak relationship between the variables count of crying peaks and an infant's IQat the age of three. Because correlation does not necessarily imply causation.

Thus,

r=0.45does not imply that making an infant cry will lead an increase in her or his IQ in later life.

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