Let's practice what you have learned about data organization.

Read the lab scenario below, and then answer the questions that follow.

Interactive exercise. Assistance may be required.

Dalton wanted to be able to grow the best strawberries in his garden. Dalton thought that fertilizer would help, so he decided to investigate the effects of different concentrations of Great Grow Fertilizer on the growth of strawberry plants.

Dalton hypothesized that if plants received a higher concentration of Great Grow Fertilizer, the plants would exhibit greater growth. He went to the plant nursery and purchased four flats of strawberry plants to use in his experiment. Each flat had five strawberry plants. Dalton applied Great Grow Fertilizer to the flats in the following concentrations:

Flat A 0% fertilizer
Flat B 5% fertilizer
Flat C 10% fertilizer
Flat D 15% fertilizer

After growing the plants for 30 days, Dalton recorded the height of the plants (cm). Dalton recorded his data as follows:

Flat A 15, 15, 14, 17, 18
Flat B 14, 19, 20, 18, 19
Flat C 10, 12, 10, 8, 10
Flat D 8, 5, 6, 6, 4

  1. Identify the independent variable, levels of the independent variable, dependent variable, constants, experimental, control groups, and number of repeated trials.

    If you need a hint, scroll over the “need a hint?” links in the graphic organizer.


  2. Design a data table to display Dalton’s data.


  3. What type of graph should be used to display this data?

    Interactive popup. Assistance may be required.

    Check Your Answer

    A bar graphClose Pop Up

  4. Create a graph using the mean (average) of data Dalton collected.