\( \begingroup \)Question 1 The salary of an electrician is normally distributed with mean €46000 and standard deviation €7000. a) If one electrician is chosen at random, what is probability that this electrician earns over €49500? Probability = Round your answer to 2 decimal places.Expected answer:(to 2 decimal places) Save answer Score: 0/1 Feedback for a). Show feedback.The feedback has changed.This feedback is based on your last submitted answer. Save your changed answer to get updated feedback. Or, you could: ⤺ Go back to the previous part There's nothing more to do from here.b) If one electrician is chosen at random, what is probability that this electrician earns between €35500 and €49500? Probability = Round your answer to 2 decimal places.Expected answer:(to 2 decimal places) Save answer Score: 0/2 Feedback for b). Show feedback.The feedback has changed.This feedback is based on your last submitted answer. Save your changed answer to get updated feedback. Or, you could: ⤺ Go back to the previous part There's nothing more to do from here. Advice (a) Converting to $\operatorname{N}(0,1)$ $\simplify[all,!collectNumbers]{P(X > {upper}) = P(Z > ({upper} -{m}) / {s})} = P(Z>\var{zupper}) = 1-P(Z<\var{zupper})=1-\var{p1} = \var{prob2}$ to 2 decimal places. (b) $\simplify[all,!collectNumbers]{P({lower} < X < {upper}) = P(X < {upper})-P(X < {lower})}=P(Z<\var{zupper})-P(Z<-\var{zlower}) =\var{p1}-\var{p2} = \var{prob3}$ to 2 decimal places. \( \endgroup \) Score: 0/3 Total 0/3 Move to the next questionTry another question like this oneReveal answers