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September 1, 2015

Homework Help: maths

Posted by harish on Wednesday, February 13, 2013 at 7:16am.

the masses of lettuces sold at a market stall are normally distributed with the mean 600g and standard deviation 20g.

1) find the mass exceeded by 10% of the lettuces.

2) 5% of the lettuces have a mass less than M g. find M

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