Unit 1, Lesson 5: Science Fusion

What is the role of an independent variable in an experiment?

• It is the result of the experiment.

• It is the factor that is deliberately changed.

• It is the factor that remains constant.

• It is the factor that is measured.

Which type of graph is best for showing data that changes over time?

• Bar graph

• Circle graph

• Scatter plot

• Line graph

What does a scatter plot help you identify?

• The total sum of data points

• The frequency of data points

• The average of data points

• The relationship between two variables

Why are the measures of central tendencies important?

What is the median in a data set?

• The average of all numbers

• The difference between the highest and lowest values

• The middle value when data is ordered

• The most frequently occurring number

Which measure of central tendency is described as the most common value in a data set?

• Range

• Mode

• Median

• Mean