Consider the following code. we want to find the mean of x based on its second column. which one is the correct response?
import numpy as np
x = np. array([[28, 18],
[34, 14],
[32, 16],

[26, 23],
[23, 17]])
(points : 1) np. mean(x[1,: ])
np. mean(x[: ,1])
np. mean(x[0,: ])
np. mean(x[: ,0])

2.)how does a graphical user interface (gui) on a touchscreen interface differ from a gui on a desktop or laptop? a.)a finger or stylus is used instead of a pointer. b.) a magic wand is used instead of a pointer. c.)users speak commands instead of using a pointer. d.)users visualize commands instead of using a pointer.

For all machines-not just hammers- the user applies force force to the machine to the machine over a certain distance. a. input b. output c. duo d. none of the above

As with any small island country, cuba has fewer natural resources than countries such as brazil. this affects their economy in that cuba a) exports only manufactured products. b) exports more products than it imports.. c) must import more products than it exports. d) has imposed trade barriers against the united states.