If the Correlation Between the Physical Weight and Reading Ability

question 135

Multiple Choice

If the correlation between the physical weight and reading ability of children is +0.85, this would indicate that

• A) there is very little statistical relationship between weight and reading ability among children.
• B) low body weight has a negative effect on the reading abilities of children.
• C) better reading ability is associated with greater physical weight among
• Children.
• D) body weight has no causal influence on the reading abilities of children.

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Definitions:

Independent Events

Two or more events whose outcomes do not affect each other.

P(A ∪ B)

Represents the probability of the occurrence of at least one of two events A or B.

Mutually Exclusive

Two events that cannot occur at the same time, meaning the occurrence of one event precludes the other.

Probability

Probability is a measure of the likelihood that an event will occur, quantified as a number between 0 and 1, where 0 indicates impossibility and 1 indicates certainty.