[IB Math SL] Nov 2016 TZ0: Paper 2, Question 5

[@halbherrdominik1810]

i dont understand how to type the part into the calculator with 2.15 and 2.49. do i use normal cdf with lower and upper boundary. because it gives me the wrong answer. thanks for the rest

[@lucienemeckova7751]

did you by any chance figure out how she got 0.0.39465 on the calculator?