Arandom sample of 2400 people are asked if they favor a government proposal to develop new nuclear power plants. if 40 percent of the people in the country are in favor of this proposal, find the expected value and the standard deviation for the number s2400 of people in the sample who favored the proposal.

Give all possible names for the line shown. calculation tip: lines can be written with either point first.

Find the exact value of each of the following. in each case, show your work and explain the steps you take to find the value. (a) sin 17π/6 (b) tan 13π/4 (c) sec 11π/3

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.