With stats pls!
"the amount of money spent weekly on cleaning, maintenance, and repairs at a large restaurant was observed over a long period of time to be approximately normally distributed, with mean μ = $597 and standard deviation σ = $39.
(a) if $646 is budgeted for next week, what is the probability that the actual costs will exceed the budgeted amount? (round your answer to four decimal places.)"
not sure how to set up this problem.. do i find the z score first? and plug in $646 for x? if so, then do i use the "ncdf" function on my calculator?