Pretest: Statistics and Probability Submit Test
Reader Tools
Info
Select the correct answer.
Shawn buys books every month. The dot plot shows the number of books he bought in each of the last 6 months. What is the mean of the
number of books Shawn bought each month?
X
1
2
3
4
5
6
7
9
10 11
12
13
14
OA. 3
OB. 4
OC. 5
OD. 7
© 2021 Edmentum. All rights reserved.

Determine whether the following statements are true and give an explanation or counterexample. bold a. when using the shell method, the axis of the cylindrical shells is parallel to the axis of revolution. bold b. if a region is revolved about the y-axis, then the shell method must be used. bold c. if a region is revolved about the x-axis, then in principle it is possible to use the disk/washer method and integrate with respect to x or the shell method and integrate with respect to y.

Asphere has a diameter of 10 in. what is the volume of the sphere?

Look at this system of equations. -3x + 3y = 12 y = x + 4 the solution set of this system is best explained by which of these statements? a) the graphs of the equations are the same line because the equations have the same slope and the same y-intercept. the system has infinitely many solutions. b) the graphs of the equations are parallel lines because they have the same slope but different y-intercepts. the system has no solution. c) the graphs of the equations are lines that intersect at one point because the equations have the same slope but different y-intercepts. the system has exactly one solution. d) the graphs of the equations are lines that intersect at one point because the equations have the same slope and the same y-intercept. the system has exactly one solution.