Acertain drug treatment cures 90% of cases of hookworm in children.18 suppose that 20 children suffer- ing from hookworm are to be treated, and that the chil- dren can be regarded as a random sample from the population. find the probability that (a) all 20 will be cured. (b) all but 1 will be cured. (c) exactly 18 will be cured. (d) exactly 90% will be cured.

Brittany has designed four different birdcages, each with the same volume: a square pyramid, a cylinder, a cone, and a sphere. the zoo wants to use one of brittany’s designs but plans to change the volume of the cage. find the design change that would result in the birdcage with the greatest volume. a.) increase the area of the base of the square pyramid by a factor of ten. b.) increase the height of the cylinder by a factor of ten. c.) increase the radius of the cone by a factor of ten. d.) increase the radius of a sphere by a factor of ten.