Suppose you design an experiment in which you grow bacteria on several petri pla

Question

Suppose you design an experiment in which you grow bacteria on several petri plates, each containing a different medium. Which of the following is an examples of an ordinal variable in this experiment? Select one: a. Number of bacterial colonies on each petri plate b. Temperature of the medium in which bacteria on each petri plate are growing, categorized as low/medium/high c. Number of different species of bacteria growing on each petri plate d. Species of bacteria growing on each petri plate e. Time required for any bacterial growth to appear on each petri plate

Explanation / Answer

Correct answer is B, since the order is high/medium/low , this can be categorized as Ordinal variable

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