Math  /  Data & Statistics

QuestionA biologist is studying how water temperature affects feeding habits of a certain species of fish. She collects measurements from several days, collecting data on the water temperature and the quantity of live food the fish has consumed per day (in kg ). The data appear in the table. \begin{tabular}{|l|l|l|l|l|l|l|l|l|l|l|l|} \hline Temperature (C)\left({ }^{\circ} \mathrm{C}\right) & 15 & 34 & 26 & 15 & 20 & 22 & 35 & 19 & 31 & 25 & 30 \\ \hline Consumption rate (kg/day) & 0.1 & 1.7 & 0.7 & 0.2 & 0.6 & 0.5 & 1.6 & 0.4 & 1.4 & 0.6 & 0.8 \\ \hline \end{tabular}
Identify the independent and dependent variable.

Studdy Solution

STEP 1

1. The independent variable is the one that is manipulated or controlled in an experiment.
2. The dependent variable is the one that is measured or observed in response to changes in the independent variable.

STEP 2

1. Identify the independent variable.
2. Identify the dependent variable.

STEP 3

The independent variable is typically the factor that is changed or controlled by the researcher to observe its effect on another variable. In this study, the biologist is examining how water temperature affects feeding habits. Therefore, the independent variable is:
Temperature(C) \text{Temperature} \left({ }^{\circ} \mathrm{C}\right)

STEP 4

The dependent variable is the factor that is measured or observed in response to the independent variable. In this study, the biologist measures the quantity of live food consumed by the fish. Therefore, the dependent variable is:
Consumption rate (kg/day) \text{Consumption rate (kg/day)}
The independent variable is Temperature (C)({}^{\circ} \mathrm{C}) and the dependent variable is Consumption rate (kg/day).

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