Question

A researcher wants to know the average growth of a certain plant one week after germination. The greenhouse where he grows plants has 12 trays with 36 plants in each tray l. He picks one tray from the greenhouse and measures the heights of each plant. The results are shown in the dot plot.

When analyzing the data, he sees that the heights of the plants are clustered around in 2 in. Could this be the result of bias in his sampling method? Explain. ​

Answer 1

Yes, he sampled plants from only one​ tray, so the sample is not random.

Answer 2

Sampling bias can occur when the procedure leads to a favoring of one population over another.

When the researcher wants to know on average how a certain plant will grow; given that they have been germinated for a week's time. By oy using a certain plant, assuming t