In this problem, we will find the volume of a solid with circular base of radius 22, for which parallel cross-sections perpendicular to the base are squares. to do this, we will assume that the base is the circle x2+y2=4x2+y2=4, so that the solid lies between planes parallel to the xx-axis at x=2x=2 and x=−2x=−2. the cross-sections perpendicular to the xx-axis are then squares whose bases run from the semicircle y=−4−x2√y=−4−x2 to the semicircle y=4−x2√y=4−x2.

Identify the statement below as either descriptive or inferential statistics. upper a certain website sold an average of 117 books per day last week. is the statement an example of descriptive or inferential statistics? a. it is an example of descriptive statistics because it uses a sample to make a claim about a population. b. it is an example of inferential statistics because it uses a sample to make a claim about a population. c. it is an example of inferential statistics because it summarizes the information in a sample. d. it is an example of descriptive statistics because it summarizes the information in a sample.