X1| 14 | 16 | 19 | 21 | 23 | 24 | 29
plx) 0.07 0.21 0.17 0.25 0.05 0.04 0.13 0.08
the mean of the discrete random variable xis 18.59. what is the variance
of x? round your answer to the nearest hundredth.
o a. 28.34
o b. 31.06
o c. 23.18
o d. 35.92

Acone is placed inside a cylinder. the cone has half the radius of the cylinder, but the height of each figure is the same. the cone is tilted at an angle so its peak touches the edge of the cylinder’s base. what is the volume of the space remaining in the cylinder after the cone is placed inside it?