Based on the data given for temperature and solubility of KCl and without doing any math yet, which of the following do you predict would best describe the relationship between these variables?
A chemistry experiment is performed measuring the solubility of potassium chloride (KCl) in water at different temperatures. The goal was to determine if there is a linear relationship between the temperature of the water and how much KCl can dissolve, measured as grams per 100 milliliter (g/100mL).
After the experiments were performed, the following data was collected with temperature being the independent x-variable and solubility being the dependent y-variable:
Temperature (°C) x |
Solubility (g/100mL) y |
10 |
31 |
20 |
33 |
30 |
37 |
40 |
41 |
50 |
42 |
Based on the data given for temperature and solubility of KCl and without doing any math yet, which of the following do you predict would best describe the relationship between these variables?
A positive linear relationship (r close to 1) |
||
A positive linear relationship (r close to -1) |
||
A negative linear relationship (r close to 1) |
||
A negative linear relationship (r close to -1) |
||
No |
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