Skip to main content

Table 2 Frequency distribution of silver nanoparticles size (nm)

From: Comparative bioassay of silver nanoparticles and malathion on infestation of red flour beetle, Tribolium castaneum

Silver nanoparticles size (nm)Tally marksFrequencyRelative frequencyPercent relative frequency (%)
28.4111133/12 = 0.250.25 × 100 = 25
16.2011133/12 = 0.250.25 × 100 = 25
20.241122/12 = 0.170.17 × 100 = 17
32.401122/12 = 0.170.17 × 100 = 17
42.441122/12 = 0.170.17 × 100 = 17
Total121212/12 − 1.01.00 × 100 = 100