In a past election, the voter turnout was 71%. in a survey, 1124 subjects were asked if they voted in the election. a. find the mean and standard deviation for the numbers of voters in groups of 1124. b. in the survey of 1124 people, 809 said that they voted in the election. is this result consistent with the turnout, or is this result unlikely to occur with a turnout of 71%? why or why not? c. based on these results, does it appear that accurate voting results can be obtained by asking voters how they acted?

For every corresponding pair of cross sections, the area of the cross section of a sphere with radius r is equal to the area of the cross section of a cylinder with radius and height 2r minus the volume of two cones, each with a radius and height of r. a cross section of the sphere is and a cross section of the cylinder minus the cones, taken parallel to the base of cylinder, is the volume of the cylinder with radius r and height 2r is and the volume of each cone with radius r and height r is 1/3 pie r^3. so the volume of the cylinder minus the two cones is therefore, the volume of the cylinder is 4/3pie r^3 by cavalieri's principle. (fill in options are: r/2- r- 2r- an annulus- a circle -1/3pier^3- 2/3pier^3- 4/3pier^3- 5/3pier^3- 2pier^3- 4pier^3)