In attempting to calculate the carrying capacity of a cylindrical pipe, avery measured the outer diameter to be 2 inches, neglecting to notice that the pipe was one eighth of an inch thick. by what percent did avery overestimate the carrying capacity of the pipe?

Rachel is studying the population of a particular bird species in a national park. she observes every 10th bird of that species that she can find in the park. her conclusion is that the birds living in the park who belong to that species generally feed on insects. rachel's sample is . based on the sample she picked, rachel's generalization is