Question 1169257
this is z between (7-10.4)/1.7 or -2 and z of 1.6/1.7 or 0.94
probability is 0.8039
fewer than 7 minutes z will be < -2 and the probability is 0.0228
more than 12 minutes z will be there remaining probability from 1-0.8039-0.0228 or 0.1733

can do this by 2nd VARS ENTER (7,12,10,4,1.7)ENTER for the first one and analogously for the others.