Qualification > Math
S1 and S2 DOUBTS HERE!!!!
astarmathsandphysics:
they are up now. try them. more on way
LekhB:
Hi
I can't figure out how to answer this question:
On a particular farm, 60% of all eggs laid by hens are classified 'large'. Everyday, the farmer selects the same number of eggs at random and sends them as a batch to the market. Given that the standard deviation of the number of eggs in a batch is 12, find
(a) the number of eggs in a batch,
(b) the mean number of large eggs in a batch.
astarmathsandphysics:
12=sqrt(np(1-p))
144=n*0.6*0.4 so n=600
Mean=np=600*0.6=360
LekhB:
I don't believe it was that easy. Thanks!
astarmathsandphysics:
See my S1 videos here
http://theeducationchannel.info/videos/18/A-Level-Maths-S1/most_recent/all_time/
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