Planning Experiments and Data Analysis

Front

What is the sample size in an experiment?

Back

It is how many times you test the variable in an experiment.

Front

What is the dependent variable in an experiment?

Back

It is the variable that is measured or counted, such as the number of aphids in the gardener's experiment.

Front

Why is it important to calculate the average of data points in scientific experiments?

Back

Calculating the average helps in making comparisons, drawing conclusions, and making predictions.

Front

What does the independent variable represent in an experiment?

Back

It is what is changed or manipulated in the experiment, such as the type of bait used.

Front

How do you calculate the average of a data set?

Back

Add all the data points together and divide by the number of points.

Front

What is a control group in an experiment?

Back

It is the group that does not receive the experimental treatment, used for comparison.

Front

What is a hypothesis?

Back

A hypothesis is a testable prediction about the relationship between variables.

Front

What is the purpose of a data table in experiments?

Back

A data table organizes and displays data collected during an experiment for analysis.

Front

What is a variable in an experiment?

Back

A variable is any factor, trait, or condition that can exist in differing amounts or types.

Front

What is the difference between qualitative and quantitative data?

Back

Qualitative data describes characteristics, while quantitative data involves numbers and measurements.