Exercise 3 solution (sample answer)

1. 35 C (95 F), the hive and flying temperature: from Beekeeping Fundamentals 4 and 5. 35 x 9/5 + 32 = 95. High confidence in the conversion; the underlying figure is as reported by the source.
2. 40,000 to 80,000 bees in midsummer: from Beekeeping Fundamentals 2 and 5. It is a range from one source, "may be as high as"; moderate confidence.
3. Nectar needs about 4 kg per 1 kg of honey: from Beekeeping Fundamentals 8. 0.2 / 0.8 = 0.25. Rough, because the inputs are "nearly 80" and "less than 20" percent.

Any three numbers are fine so long as the chapter is named, a check is shown and the confidence is stated honestly.