question 14 of 25

which of the following is not a possible $r$-value?

a. 0.6
b. 0.3
c. -0.3
d. -1.6

Question

question 14 of 25

which of the following is not a possible $r$-value?

a. 0.6
b. 0.3
c. -0.3
d. -1.6

Accepted Answer

{ "quality": "clear", "question_count": 1, "skills_matched": [ "step_cot", "multiple_choice_formatter", "explain_then_answer", "quick" ], "needs_drawing": false, "concepts_used": [ "Correlation Coefficient" ], "new_concepts": [], "current_concepts": [ "Correlation Coefficient" ] } ## Identify the range of the correlation coefficient $$ -1 \le r \le 1 $$ ## Evaluate the given options against the range $$ \begin{aligned} &\text{A. } 0.6 \in [-1, 1] \ &\text{B. } 0.3 \in [-1, 1] \ &\text{C. } -0.3 \in [-1, 1] \ &\text{D. } -1.6 otin [-1, 1] \end{aligned} $$ ## Determine the invalid value $$ r = -1.6 $$

A. 0.6

B. 0.3

C. -0.3

D. -1.6

{ "subject": "Mathematics", "question_type": "Multiple Choice", "knowledge_point": [ "Mathematics", "Statistics", "Correlation Coefficient" ] }

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QUESTION IMAGE

Question

Explanation:

Identify the range of the correlation coefficient

Evaluate the given options against the range

Determine the invalid value

Answer: