Perry performs a study to determine the average number of flowers on gardenia bushes at a plant nursery. Which will produce the most representative results?

A representative sample should include bushes from the different growing conditions that may affect flower counts. Choice D samples 10 bushes in the shade and 10 in full sun, so both groups are included. The other choices sample only one location or sunlight condition, which could give a biased estimate of the nursery’s average.

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