Write the normal probability for the shaded region of the graph and find its value. Select the correct choice below and fill in the answer box within your choice. (Round to four decimal places as needed.)
A.
P(3≤x≤7)=P(2.5≤x≤7.5)=nothing
B.
P(3 C.
P(4 D.
P(4≤x≤6)=P(3.5≤x≤6.5)=nothing
Compare the results. Choose the correct answer below.

The results are about the same.

The results are totally different.