According to a 2016 survey, 6 percent of workers arrive to work between 6:45 A. M. and 7:00 A. M. Suppose 300 workers will be selected at random from all workers in 2016. Let the random variable W represent the number of workers in the sample who arrive to work between 6:45 A. M. and 7:00 A. M. Assuming the arrival times of workers are independent, which of the following is closest to the standard deviation of W? A. 0.24
B. 4.11
C. 4.24
D. 16.79
E. 16.92

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.