Pea aphids, Acyrthosiphon pisum, are small, Wingless, sapsucking insects that live on plants. They evade predators (such as ladybugs) by dropping off of the plants. A study examined the mechanism of aphid drops. Researchers placed aphids on a leaf positioned at four different heights (in centimeters, cm) above a surface covered with petroleum jelly. When a ladybug was introduced, the aphids dropped, and the petroleum jelly helped capture their landing posture (upright or not). Each aphid performed this experiment only once. The nds are presented in the table. Dropping Height Landing Posture 3 cm mm- Not upright 13 -n Sample Size 33 Calculate the percentage of aphids that land upright when dropped from the indicated heights. (Enter your answers rounded to one decimal place.) dro ed from 20 cm