This region as the same area as the one in your previous question.
Pr[1 < <em>Z</em> < 2] = Pr[-2 < <em>Z</em> < -1] ≈ 0.14
You can't, the K cancels itself out. There is no solution to this
We need to be able to see the graph in order to be able to know for sure, but most likely D) Point E.
Answer:
7/10 is 70%
67/100 is 67% (there is more than one right answer to this one)
9/2 is 450%
