Aconsumer organization inspecting new cars found that many had appearance defects (dents, scratches, paint chips no car had more than three defects. here is the probability distribution for the number of appearance defects in a new car. x = number of defects 0 1 2 3 p(x) 0.58 0.24 0.13 0.05 find the expected number of appearance defects in a new car. enter a number in decimal form. do not round.

Astudent is determining the influence of different types of food on the growth rate of spiders. she feeds one group of spiders two caterpillars twice a week. the other group received similarly-sized beetles twice a week. she records the amount of time required for individuals to reach sexual maturity. her hypothesis is that the spiders feeding on caterpillars will have a faster growth rate because caterpillars have a higher protein content compared to beetles. in this experiment, what is the dependent variable? spiders assigned to different feeding groups. time required to reach sexual maturity number of prey items fed twice a week. growth rates of each group.