I'm having a slight amount of difficulty with Q7a of June 2012 paper! I fully understand the formula I'm using and that I'm using the central limit theory but I don't understand why in the markscheme the standard deviation is divided by 1000 to get 0.075. If anyone can shed any light on this it would be wonderful! I am fully aware I've left this pretty late!
The general consensus is that if you aren't as good on the cores, you'll be better in statistics. But they're gonna throw stuff into this exam in a format that we've never seen, just like they did this year and last year. Good luck!
It is something to do with the fact that all data lies within 3 standard deviations of the mean, so all cuts of the dough are within 3 standard deviations of the mean?
It is something to do with the fact that all data lies within 3 standard deviations of the mean, so all cuts of the dough are within 3 standard deviations of the mean?