The table shows the amount of yeast cells (measured as biomass) growing over a 7-hour period in a nutrient, as recorded by R. Pearl (1927) during a well-known biological experiment.

a. Make a scatterplot of the data.

b. Find and plot a regression quadratic, and superimpose the quadratic curve on the scatterplot.

c. What do you estimate as the biomass of yeast in the nutrient after 11 hours?

d. Do you think the quadratic curve would provide a good estimate of the biomass after 18 hours? Give reasons for your answer.

Transcribed Image Text:

Hour 0 1 2 Biomass 9.6 18.3 29.0 3 4 5 6 7 47.2 71.1 119.1 174.6 257.3