TITLE: Normal distributions (sorry) Question 1: Working: Now the answer for sigma i got correct, but μ i got incorrect for some reason. Could anyone explain where i've gone wrong for μ? Question 2: Workings: All i need help is with part c and d: for c) i done 1 - 0.6463 to get the probability of the two shaded bits, but where do i go to get the part they are asking for? for d) i have no idea, any help would be great. thanks.