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.....

PodgeS
use the formula:
(x  mean)/(standard deviation)
ie.(6860)/(5) = 1.6
this is the zscore.
then go to the tables find the probability corresponding to a zscore of 1.6, and you'll see it is 0.9452.
Good luck.

Maccormack
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

sophiaon
Thank yous sooooo much!!!!! :D

Me
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