The graph depicts the hours prep time for students who took the ACT

Question

Data Insights (DI) Butler 2023-24 Click here for Details ] 1.jpg The graph depicts the hours prep time for students who took the ACT test and their corresponding average score. Identify the missing information for the following statements using the graph. I. The relationship between study time and test scores is GRAPH_1_PLACEHOLDER . II. The slope of the regression line is GRAPH_2_PLACEHOLDER .

pintukr · Answer

The graph depicts the hours prep time for students who took the ACT test and their corresponding average score. Identify the missing information for the following statements using the graph.

I. The relationship between study time and test scores is

There is neither positive nor negative relationship observed between study time and test scores

Hence, ZERO is the correct answer

II. The slope of the regression line is

Since, there is NO relationship observed between study time and test scores

Hence, NOT APPLICABLE is the correct answer

MY002 · Answer

Hi  Sajjad1994 ,  pintukr !
For the first question can you please explain the difference between zero and not determined. Also when do we select not determined as the answer?

Sajjad1994 · Answer

Official Explanation

Q1.1:  Since the scatterplot shows no clear trend, the relationship between the study time and the test score is zero.

Q1.2:  Since there is no relationship between the study time and the average test score, a regression line is non-applicable.

Answer: B and D

Vibhatu · Answer

Since the scatterplot shows no clear trend, the relationship between the study time and the test score is NOT DETERMINED . Why cant. we put this? What is the difference between not determined and ZERO?

cheshire · Answer

Correlation is typically represented by the variable  r , which quantifies the strength and direction of a linear relationship between two variables. A value of  r = 0  indicates no linear correlation (what we have here). However,  r  is only defined when variability exists in both variables. If there's insufficient data or constant values,  r  would be  cannot be determined . But since we have a large set of diverse data, we can confidently say r = 0.

The graph depicts the hours prep time for students who took the ACT

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