PLEAASEEE someone help me with this :( in the statistics question 2013 paper 2 Q2 part a(i) where did the 0.9452 answer come from!? im so confused.....
use the formula:
(x - mean)/(standard deviation)
ie.(68-60)/(5) = 1.6
this is the z-score.
then go to the tables find the probability corresponding to a z-score of 1.6, and you'll see it is 0.9452.
When you get a Z score you refer your z score to the table on page 36/37 of your formula and tables and it corresponds to a certain figure . Such. As in this question you got 1.6 and that represents 0.9452