To build a large sandcastle, sam and old traffic cone and fills it with sand. the cone is 18 in. tall and has a diameter of 7 in.
to the nearest cubic inch, how much sand does sam use?

a.26 in^3

b.103^3

c.232^3

d.308^3

The distribution of a sample of the outside diameters of pvc pipes approximates a symmetrical, bell-shaped distribution. the arithmetic mean is 14.0 inches, and the standard deviation is 0.1 inches. about 68% of the outside diameters lie between what two amounts?