There is a population of three people: xerxes, yasmin, and zoe. [note: this is a population, not a sample.] they are asked how many books they read last month. xerxes read 2 books, yasmin read 4 books, and zoe read 12 books. we are too lazy to poll the entire population, so we take a sample of two (with replacement and order matters). draw the sampling distribution of the mean of a sample of size two.

Ahigh-altitude spherical weather balloon expands as it rises, due to the drop in atmospheric pressure. suppose that the radius r increases at the rate of 0.02 inches per second, and that r = 36 inches at time t = 0. determine the equation that models the volume v of the balloon at time t, and find the volume when t = 360 seconds. v(t) = 4π(0.02t)2; 651.44 in3 v(t) = 4π(36 + 0.02t)2; 1,694,397.14 in3 v(t) = four pi times the product of zero point zero two and t to the third power divided by three.; 4,690.37 in3 v(t) = four pi times the quantity of thirty six plus zero point zero two t to the third power divided by three.; 337,706.83 in3